#ik this isn’t a very large genre of kryptonian fics for whatever reason

[bonebrokebuddy]

Kryptonian Biology Prompts #1

Due to the combination of the facts that Clark’s heart canonically thrums rather than beats and his voice has been mentioned to have a resonant quality to it (generally by Bruce).

I propose that evolutionarily Kryptonian have some form of their anatomy that connects their heart to their vocal cords, causing their voice to automatically “hum” whenever they speak, think evolutionary wackery akin to the laryngeal nerve in giraffes.

Thankfully, it could likely be written off as a naturally gravely or raspy voice that would decrease during times of lack of physical duress.

While this means that Kryptonian’s could theoretically purr, it also means they would only do so when under extreme amounts of duress or physical exertion as their heartbeat would need to rise above normal levels to cause their vocal cords to thrum without also speaking. As a result, it could only be heard in circumstances where a Kryptonian is horribly injured & near death or is exhausted & out of breath (a Very difficult feat.)