TIL chickens can perform simple arithmetic, have basic time perception, show self-control (can delay a smaller reward for a larger one later), show object permanence (understand an object exists when out of sight; humans get at age 2), and possess transitive inference (humans achieve at age 7)

https://pmc.ncbi.nlm.nih.gov/articles/PMC5306232/
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1qvqc06/til_chickens_can_perform_simple_arithmetic_have/