#evolved

Benjamin Carr, Ph.D. 👨🏻‍💻🧬BenjaminHCCarr@hachyderm.io
2025-09-20

You can hold on to your butts thanks to #DNA that evolved in #fish
Making digits seems to involve #gene activity that was needed to make a #cloaca.
Fish that limbed #vertebrates evolved from don't have obvious digit equivalents, most common types of fish just have a large collection of rays supporting their fins.
It turns out hox gene activity in digits isn't the ancestral state; instead, it seems to have #evolved separately in the ray-finned fish and vertebrate lineages.
arstechnica.com/science/2025/0

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