mohaneds,

Random Thought: I wonder when modern neurotransmitters evolved. The neurotransmitters we know and love (serotonin, gaba, glutamate, dopamine, epinephrine/norepinephrine, histamine ETC) are in use by mammals and reptiles, so i'm guessing like 10-20 million years ago. #science #neuroscience

rayckeith,
@rayckeith@techhub.social avatar

@mohaneds (200-250 million years ago, for mammals.)

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