animalcognition.org

jNXVE TIL about the fact that snakes do turn out to be more social than previously believed and apparently have more complex social interactions than we had previously known.
JYKdB TIL that ants are amongst the few animals who passed the mirror test, which is a strong evidence of self-recognition, and indicates the possibility of self-awareness (i.e. a “sense of self”).
D170e TIL Some organisms besides humans have passed the mirror test which scientists say suggests they have "self-awareness".