#Sciblr

[victusinveritas]

[monarchbutt]

whenever i can't picture dinosaurs existing i just humble myself by looking at birds alive today. what the actual fuck is that thing

[casual-eumetazoa]

a post-doc was doing a guest seminar at my institute and at the beginning of his presentation he was explaining why he chose birds for his evolutionary analysis - so he said "well first of all, because birds are the best and most interesting animals and it's fun to study them" and a few professors in the room gave him a very serious nod

[wheres-your-paddle]

things i've heard environmental science majors say:

"For the test we'll need to tell the different flavours of mayflies apart." / "Did you just say flavours?"

"It amazes me how many city kids are in this program." / "We're all desperate to get out of this city."

"I think everyone who attended all the surface water pollution lab sections should be allowed to lick one piece of glassware of their choosing. Y'know, as a treat."

"Professor, nobody goes into this major unless they like to eat dirt." / "Great, so you can talk the Students' Association into convincing the board to give me funding for my trees?"

"What're we toasting to?" / "Nitrogen pollution."

"You look frustrated. What's up?" / "I had twenty-one Leptophlebiidae in my dish. He's going to think I'm lying about how many Leptophlebiidae are in my dish."

"If you weren't raised by Wall-E, do you even belong in this class?" / "The Onceler." / "Fuck, good point."

"Dude, I spent the whole exam trying not to sink my teeth into a really, really juicy bug in my sample—" / "Cranefly?" / "...yeah."

"Well, just make sure you're not (person)'s lab partner. Last weekend's trip involved him leaving too many fish in the dirt for the professor's liking."

[exhausted chorus] "And the fish go belly-up."

"What's the major difference between east coast and west coast soils?" / "Alcoholism."

"Got any plans for the holidays?" / "Gonna go home and listen to my entire extended family call me a tree-hugging hippie." / "Aren't we all?"

[todropscience]

THIS OCTOPUS IS HAVING A NIGHTMARE, SCIENTISTS BELIEVE.

Sleep is a fundamental biological function present in all vertebrates and most invertebrates. Octopuses are really complex animals, displaying active and inactive sleep states similar to those of vertebrates. In particular, octopuses have active sleep states during which they display sequences of camouflage patterns, while remaining relatively quiet and unresponsive to external stimuli. Some scientists have speculated that these states could be analogous to dreaming in mammals.

Now, researchers have recorder what is believing an octopuses having nightmare. During a month, researchers recorded a male Brazilian reef octopus (Octopus insularis), and they detected four brief episodes were identified during which the octopus abruptly emerged from sleep, detached itself from its sleep position, and engaged in antipredator behaviors, despite no predator was present. The longest of these episodes resembled the species-typical response to a predatory attack, suggesting that the animal may have been responding to a negative episodic memory while sleeping.

However, these are just conjectures, as it is hard to be sure, according to scientists, who claim that more studies are needed to ensure that they really are nightmares.

Gif from video: Eric Ramos et al

Reference:  Ramos et al., 2023. Abnormal behavioral episodes associated with sleep and quiescence in Octopus insularis: Possible nightmares in a cephalopod?. bioRxiv.

video can be seen here

[chemblrish]

As a former nerdy child (and current nerdy uni student) I love how you don't grow out of it, I love that ✨real scientists✨ remain genuine nerds: there's a sheet of paper stuck to the wall above the coffee machine in my internship mentor's office that shows an increasing linear function where x = amount of consumed coffee and f(x) = number of published papers. The researchers here regularly joke about electrons and syntheses and whatnot. Internship mentor told us all today about a science meme he'd seen the other day. It's amazing :')

[mermazeablaze]

This video is doing numbers on TikTok, but I wanted to share it here because I am so proud. The man being featured is my uncle Steve Smith.

Steve has been building drag racers & custom cars his entire life.

My grandma before passing away would tell the story of how when he was 10 or 11 years old - she came home to him taking apart the engine in her secondary vehicle (reserved for fancy outings).

She asked him why & he said he wanted to know how it worked outside of a schematic. & she told him that as long as he put it back together the way he found it, it was fine by her. & what's more - he put it back together from memory without even looking at a diagram!

If anything went wrong with the car, my grandma had him fix the car & it was that way until my grandma passed away. She never paid for a mechanic in her life again.

When Steve was a teenager he spent most of his time at the OKC Racetrack & raced with drag racers he built himself.

Also, as a teen he won the Bethany, OK wheelie championship by riding over a mile nonstop on his motorcycle on a single wheelie position.

All throughout my childhood he always had cars around in various stages of fixing up.

The city of Bethany refused to sell him the property next to his house to open his own auto garage. He had worked for Diffee Motors most of my life up until then. So he moved out in the country & opened his own garage.

Steve has been on several mainstream auto shows being featured for his custom work. He also built a custom car for one of the guys on Duck Dynasty. He was also offered a permanent role on an auto TV show, but he turned it down because it required moving out of state.

My uncle Steve is one of the sweetest, kindest & most generous people you will ever meet in your lifetime. He's as smart as a whip, has never met a stranger & gives the best hugs!

It just makes me so happy to see him getting the recognition he deserves.

The picture below is of him at a family function sitting next to his wife, Nancy.

[a-dinosaur-a-day]

I CURSE YOU WITH LOVE FOR CREATIONISM

what an odd thing to say to a Jewish paleontologist

did you know

young earth creationism was never the jewish interpretation of that text; those jews today who believe it have been influenced by xtians. classic commentary showcases vagueness as to the timing of the creation event, with one talmudic commenter suggesting the time may have been millions of years

YEC'ism, as a result, is filled with antisemitism, as many philosophies that require jewish people to be wrong about their own books are

not a single aspect of the Torah is meant to be taken literally. it is a multifaceted work where higher level interpretations are the bulk of the meaning of the text (Pardes method)

many jewish scholars over the years have pointed out how living things change over time

the amount of evidence we have that the earth is 4.6 billion years old and the universe 13 billion years old is overwhelming

the amount of evidence we have that living things have changed over long periods of time is overwhelming

the amount of evidence we have that populations change over short periods of time (which would then add up to those long changes) is overwhelming

the amount of extremely accessible evidence we have that evolution via natural selection happens is greater than the evidence we have for the force of gravity

many things we deal with today, in our anatomies, geographies, and ecologies, are only explicable with a knowledge of deep time

understanding evolution has been linked with more tolerant attitudes and a better ability to critically evaluate new information (ie, if you're a young earth creationist, you are more likely to be racist and stay that way)

understanding evolution is key to actually fixing many social and ecological problems and ignoring it is, in fact, a self defeating action

the history of the earth is not actually a debatable subject. people who believe in young earth creationism are one thing: delusional.

anyways, I know you didn't read any of that, so have fun sticking your head in a pile of sand. Ostriches don't do that, but you do.

[bentostudy]

A few of my favourite spreads from this year. Now that I'm not studying and just working I've been trying to make sure I still have a creative outlet to capture what I do and to look back on when I'm older. Some of my travels to London, Prague and Edinburgh are captured here.

🎧: babe rainbow

[learnyouabiology]

Fun Fact: Hognose snakes are dramatic lil guys!

I am particularly fond of the snakes known as hognose snakes, and my reasons are both understandable and correct.

This is a hognose snake:

(They received their name by having the sweetest lil snoot to ever require a boop – image source)

They use these adorable snoots to burrow under sandy soil using a sort of nuzzle-y motion. They then use these burrows as a place to sleep at night, hibernate in the winter, and lay their eggs. 

(you could say they’re into... the Underground Scene! ...ok yeah i’ll show myself out – image source)

Plus, they come in a variety of delightful colours!

We've got brown! Beige! Yellow! Black! Red! Orange! Tan! Kinda greenish! Orange again!

(pretty sneks! – Here’s all the image sources: 1, 2, 3, 4, 5, 6, 7, 8, 9)

And, to be clear, the snakes pictured above are wild snakes. No selective breeding by humans in these noodly bois! At least, not in these specific individuals. probably. I guess a few of them could be escapees... 

But most importantly: These snakes know the true meaning of DRAMA

Hognose snakes are actors, first and foremost. When they feel threatened, the first thing they do is puff out their neck into a hood. 

(like cobras, this hood is made by FLEXING THEIR NECK RIBS. which: gross – image source x)

This superficially makes them look like a cobra, but what they’re actually trying to do is make themselves seem bigger, and therefore scarier. Possibly those dark spots on their neck helps with that! 

Any resemblance to real-life Eurasian cobras, real or fictional, is purely coincidental

Also, it makes its mouth do this:

(Snakes that SCREAAAAAAAM. – image source)

honestly, if I didn’t already know that hognose snakes were harmless, this would ABSOLUTELY make me leave it the hell alone 

But if all of that^ is unsuccessful at scaring away the predator, the hognose snake pulls its signature move: playing dead

If you think that is a lame signature move, then you are wrong, because hognose snakes put EVERYTHING into their performance and I love them for it.

(they’re serious, they’ll do it!  – image source)

((I’m actually going to stick the rest of this under a read-more, bc the pictures of the alive-and-physically-fine hognose snakes do kind of look like a legitimately-dead hognose snake, if you don’t know what to look for. 

So, uh: cw for a snake being too good at pretending to be dead))

Behold: a series of completely healthy, unharmed snakes!!!

(to help with their self-esteem, we ask that you at least pretend to believe that they are dead – image sources 1, 2, 3, 4)

Honestly, the photos don’t do it justice. Here’s my favourite video of the whole wonderous performance: 

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But to review:

There's writhing! There's dramatic noises! There's flipping onto their back and opening their mouth wide and letting their tongue hang out! There's excreting a combination of  intentionally smelly substances!!! Truly a master of the art of being left the hell alone (*^▽^*)

(yep. deeeeefinitely dead. not just faking it. nothing worth eating here! – image source)

Personally, my favourite part of this is how they insist on rolling onto their back, even when they are rolled back onto their stomach. 

Seriously, if you try to roll them right-side-up, they will flip back over. It's as though they believe that a good, proper dead snek MUST be on its back, obviously.

(truly fearsome – image source)

Sadly, the hognose snake may have made itself too scary, according to humans.

Out of fear, these snakes are commonly killed on sight 😔. I once heard someone proudly brag about how they’d killed a dozen cobras! In southern Ontario! Where cobras do not live! This is both extremely frustrating and deeply sad.

(safe enough to hold! although maybe don’t, just because this snake IS probably experiencing mortal fear, which is not a good feeling – image source © Dean Stavrides)

So just to highlight: hognose snakes are completely harmless. They’re just pretending to be fearsome!

(not that people should be killing venomous snakes either, imo. Let the danger noodles LIVE THEIR LIVES)

(i is baybee, pls do not hurt me – image source)

And now some bonus facts to help raise us out of that downer:

Hognose snakes are toad specialists! Their favourite food is toads, which is unusual, because toads are poisonous. Hognose snakes deal with this by force of will and also, at least two amino acid substitutions, maybe (Mohammadi et al. 2016). Possibly a few other things help with this, also (Feldman et al. 2016).

(is snek eat toad? or does toad wearing cape of snek? impossible to tell, really – image source)

Also, I have a confession: hognose snakes... are venomous. Technically.

(itty bitty little fangs at the veeeeery back of their mouth!  – image source)

They are known as rear-fanged snakes, which means they have fangs aaaall the way at the back of their mouth. The venom they produce seems to be toad-specific, and is considered to be harmless to humans unless you happen to have an allergy but that's the exception rather than the rule

(the two hognose species. They are both baybee, but in different ways actually there might be more than two species but these are the two i’ve actually learned about so ALL WELL   – image source)

Also, hognose snakes are big cowards NOT aggressive and I've never even heard of anyone getting bit by a one (outside of one feeding mishap, which we can all agree was an ACCIDENT). 

The series of events that would need to occur for you to be envenomated are so unlikely and bizarre that I assume you would have to be TRYING to get bit.

This has been Fun Fact Friday, bringing you the forbidden noodly boys to try and keep them a little more safe!

.....................................................................

Sources, because I know me and SO DO YOU:

Averill-Murray, R. C. (2006). Natural history of the western hog-nosed snake (Heterodon nasicus) with notes on envenomation. Sonoran Herpetologist, 19(9), 98-101.

Buchanan, Scott W.; Timm, Brad C.; Cook, Robert P.; Couse, Richard; Hazard, Lisa C. (2017). Spatial ecology and habitat selection of eastern hognose snakes. The Journal of Wildlife Management, 81(3), 509–520. doi:10.1002/jwmg.21218 

CHS: Canadian Herpetological Society https://canadianherpetology.ca/species/species_page.html?cname=Eastern%20Hog-nosed%20Snake

COSEWIC. 2021. COSEWIC assessment and status report on the Eastern Hog-nosed Snake Heterodon platirhinos in Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. xi + 45 pp.  https://www.canada.ca/en/environment-climate-change/services/species-risk-public-registry/cosewic-assessments-status-reports/eastern-hog-nosed-snake-2021.html

Cunnington, G. M., & Cebek, J. E. (2005). Mating and nesting behavior of the eastern hognose snake (Heterodon platirhinos) in the northern portion of its range. The American midland naturalist, 154(2), 474-478.

Feldman, C. R., Durso, A. M., Hanifin, C. T., Pfrender, M. E., Ducey, P. K., Stokes, A. N., ... & Brodie Jr, E. D. (2016). Is there more than one way to skin a newt? Convergent toxin resistance in snakes is not due to a common genetic mechanism. Heredity, 116(1), 84-91. 

 Jared, C., Luiz Mailho‐Fontana, P., & Maria Antoniazzi, M. (2021). Differences between poison and venom: An attempt at an integrative biological approach. Acta Zoologica, 102(4), 337-350.

Liu, C., Chen, Y., Zheng, Y., Bo, J., Yang, C., Xu, S., & Zhang, S. (2022). Wear Resistance Improvement of Keeled Structure and Overlapped Distribution of Snake Scales. Journal of Bionic Engineering, 1-11. Citing abstract.

Mohammadi, S., Gompert, Z., Gonzalez, J., Takeuchi, H., Mori, A., & Savitzky, A. H. (2016). Toxin-resistant isoforms of Na+/K+-ATPase in snakes do not closely track dietary specialization on toads. Proceedings of the Royal Society B: Biological Sciences, 283(1842), 20162111. 

 Nature Conservancy of Canada: https://www.natureconservancy.ca/en/what-we-do/resource-centre/featured-species/reptiles-and-amphibians/eastern-hog-nosed-snake.html

Plummer, M. V., & Mills, N. E. (1996). Observations on trailing and mating behaviors in hognose snakes (Heterodon platirhinos). Journal of Herpetology, 30(1), 80-82.

Rouse, Jeremy D.; Willson, Robert J.; Black, Ron; Brooks, Ronald J.  (2011). Movement and Spatial Dispersion of Sistrurus catenatus and Heterodon platirhinos: Implications for Interactions with Roads. Copeia, 2011(3), 443–456. doi:10.1643/ce-09-036     

Seburn, D. 2008. Recovery Strategy for the Eastern Hog-nosed Snake (Heterodon platirhinos) in Canada. Species at Risk Act Recovery Strategy Series. Parks Canada Agency, Ottawa. vi + 24pp.

Schwartz, V. & D. Golden (2002). Field Guide to Reptiles and Amphibians of New Jersey. New Jersey Division of Fish and Wildlife

VHS: Virginia herpetological society http://www.virginiaherpetologicalsociety.com/reptiles/snakes/eastern-hog-nosed-snake/eastern_hognose_snake.php#:~:text=Heterodon%20is%20derived%20from%20the%20Greek%20words%20heteros,meaning%20%22broad%20or%20flat%22%20and%20rhinos%20meaning%20%22snout%22

Young, R. A. (1992). Effects of Duvernoy's gland secretions from the eastern hognose snake, Heterodon platirhinos, on smooth muscle and neuromuscular junction. Toxicon, 30(7), 775-779. https://doi.org/10.1016/0041-0101(92)90013-U

Young, B. A., & Morain, M. (2003). Vertical burrowing in the Saharan sand vipers (Cerastes). Copeia, 2003(1), 131-137.

SARA: threatened https://www.canada.ca/en/environment-climate-change/services/species-risk-public-registry.html

[cant-think-of-a-good-one]

reblog in order to increase sample size and what not

oh and also please put what the field of study is in the tags especially if you chose an option that has "none of the above but-". i'm really curious

[monarchbutt]

[seeking-knowledge]

i think i might cry.

[wheres-your-paddle]

advice for baby stem kiddos

(from your friendly neighbourhood science cryptid)

Keep extra calculator batteries in your bag

If there's a graph on the lecture slides, it'll probably be on the test

Get a dropdown periodic table extension on your browser (if you do chem)

Keep extra calculator batteries in your bag

Track how long you spend on each assignment/test

find "your" study spot. i cannot stress this enough. have a designated study spot.

Group studying is easier if you have a whiteboard. Preferably a lot of whiteboard.

Group studying isn't for everyone.

Keep extra calculator batteries in your bag

8am labs are worse than 8am lectures

Keep extra calculator batteries in your bag

KEEP EXTRA CALCULATOR BATTERIES IN YOUR BAG

[todropscience]

THREE NEW SHARK SPECIES THIS WEEK!

The second week of July 2023 something extraordinarily beautiful happened, the findings of 3 new species of sharks for were announced

A new angel sharks species was identified, from the western Indian Ocean on the Mascarene Plateau and off southwestern India in 100–500 m depths, the Lea’s angel shark Squatina leae, was recognized to be different genetically and morphologically distinct from its congeneric species Squatina africanae, following unique morphological features.  This species was first detected in 1988 after finding  three unusual, small sharks, but till today was completely understood. The angel shark is named after one of the author’s fiancee’s late sister, Lea-Marie Cordt.

-  Squatina leae, adult male, in dorsolateral.

Angel sharks are “flatter sharks”, possesing distinctly broad, dorsoventrally flattened bodies, a short snout with large mouth and nostrils, eyes on top of the head close to the large spiracles, very large pectoral fins, and a lateral caudal keel. They've evolved to be ambush predators, they lie in wait for prey to pass closely overhead before attacking.

Reference (Open Access):  Weigmann et al., 2023. Revision of the Western Indian Ocean Angel Sharks, Genus Squatina (Squatiniformes, Squatinidae), with Description of a New Species and Redescription of the African Angel Shark Squatina africana Regan, 1908. Biology 

From North Australia, another species of hornshark is described based on six whole specimens and a single egg case. The painted hornshark Heterodontus marshallae was previously considered to be the same with the zebra bullhead shark another well know bullhead shark from the central Indo-Pacific from Japan  to Australia, but genetic and morphological analyses indicated the sharks were different, but looking alike. The painted hornshark is endemic to northwestern Australia and occurs in deeper waters, at 125–229 m below surface.

-  Lateral view of two mature female painted hornshark Heterodontus marshallae showing small differences between individuals

The painted hornsharks is named in honour of Dr. Lindsay Marshall www.stickfigurefish.com.au a scientific illustrator and elasmobranch scientist who expertly painted all the sharks and rays of the world for the Chondrichthyan Tree of Life Project.

Reference (Open Access): White et al., 2023 Species in Disguise: A New Species of Hornshark from Northern Australia (Heterodontiformes: Heterodontidae). Diversity.

And from an unidentified shark egg collected from the deep waters of northwestern Australia, in 2011 recently helped researchers identify a new species of deep water cat shark. Called ridged-egg catshark Apristurus ovicorrugatus after its eggs, it was collected in the earlys 90 but remained unknown to date. This sharks presents white eyes, and is small in size, reaching less than a half meter in length. .

- Lateral view of female Apristurus ovicorrugatus before preserved. Photo by  CSIRO. 

Egg cases belonging to this species had been documented as early as the 1980s, but could not be matched to any species of Australian shark until recently scientists examined a shark specimen of previously uncertain identity in the CSIRO collection.

 -egg cases of Apristurus ovicorrugatus. Scale bar is 10 mm

Reference (Open Access) White,et al., 2023 What came first, the shark or the egg? Discovery of a new species of deepwater shark by investigation of egg case morphology. Journal of Fish Biology.

[chemblrish]

11 May 2024

Here's what's left of the semester:

four weeks of classes (only four?!?! Ahhhh!)

one analysis in ochem

one synthesis in ochem (when am I supposed to do it?!)

two pchem labs

two ochem tests

one final

I am totally not freaking out. It's fine I'm fine okay I'm fINE