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Ameisen t1_iwsbdu8 wrote

Reply to comment by webbphillips in I saw in a video that chimpanzees and gorillas do not knuckle-walk in the same way, but they didn't explain what the difference is. Could someone elaborate on the physiological/anatomical differences? by [deleted]

Reptiles are diapsids, while mammals are synapsids. Though it depends on your definition of "reptile", though when amniotes first appeared they very rapidly split into synapsids and diapsids, while apes appeared 10 million years after the first Cattarhines (and aren't significantly different from their closest non-ape relatives).

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kfederal t1_iwsla13 wrote

Can I pay you to spit evolutionary facts by my bedside while I fall asleep?

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Ameisen t1_iwsnowq wrote

All the mitochondria in all Eukaryotes are the descendents of a single proto-mitochondrion (likely closely-related to Rickettsoid bacteria) which was engulfed by an early proto-Eukaryotic cell, but was not destroyed.

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