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today things · Oct 30, 2025

fun biology facts + upsetting short story recs

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Danielle · today things

Snakes typically have only one lung. specifically, the right one.1 whyyyyyyy?

otoh (otol?), amphisbaenians (worm lizards) have only the left lung!

evolution is just whimsical like that, shrug

This diagram of snake movement patterns reminds me of Beauchamp-Feuillet notation, a system of dance notation used in Baroque dance from the 16-1700s

which has always seemed to me rather more charming than the more modern Benesh notation (though the latter might be more helpful for robotic motion?)

i do not like to dance but i truly love novelty notation systems

Octopuses2 have donut-shaped brains - the esophagus goes through the middle!

They also have three hearts, which is 1.5x my personal lifetime maximum (along with any Timelord’s) (but fewer total chambers (5) than a Klingon, who has 83 (in just one heart, strangely))

oh and speaking of maritime brains, sea squirts digest their own brain after attaching to their permanent homes

oh and speaking of Star Trek biology in real life, female ferrets experience pon farr (“If mating does not occur, the females will succumb to aplastic anemia and die a most painful death.” - some veterinarian)

short stories I recently read and enjoyed
perfect sentences (and snippets)

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1

sometimes they do keep the left one, but it’s vestigial or just itty bitty

2

“Given that most people don’t often encounter multiple specimens of this genus of cephalopod mollusks it is unlikely that you will ever find yourself in sudden need of deciding which plural form is correct.” - Merriam-Webster

3

the real winner is the cockroach, who out-klingons the klingons with its 13-chambered heart

Read the original on todaythings.substack.com

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