I've just recently learned about the termite subfamily Nasutitermitinae! and I want to take a moment to talk about their soldier caste, because, I mean... Look at these guys:
[Image Source: Taxonomic Notes on Nasutitermes and Bulbitermes (Termitidae, Nasutitermitinae) from the Sunda region of Southeast Asia based on morphological and molecular characters | Image ID: Four photos of soldier termites of the Nasutitermitinae subfamily, genus Nasutitermes, showing their heads from above. They have particularly round heads with pointed "noses" /End ID.]
'Why are they shaped like that?' you may be asking, and, as it turns out, that charming little nose is actually a means for chemical warfare! It's referred to as a "fontanellar gun" (likely meaning "fountain gun", alternatively called the nasus), and these termites use it to fire a sort of glue, or ant repellent depending on species. In fact, the accuracy of this shot is quite remarkable, as termites are blind!
[Image Source: The Nasutitermitinae termites, Termite Web | Image ID: A photo of more termites of the subfamily Nasututitermitinae, focusing on a large, major soldier amongst smaller, minor soldiers and worker termites]
Mantodea. This order is made up of mantises, elongated predators with enlarged forelegs adapted for catching prey.
Blattodea. This order is made up of cockroaches, hardy insects with generalized and primitive morphology, and termites, eusocial insects that live in colonies.
Termite mounds are a common phenomenon of the Top End landscape. Each termite mound is equivalent to a skyscraper in a human city. They have different styles and colours due to different termite species and different building materials. They are the oldest cities! Kakadu & Litchfield NP.