empathic-rats-spring-each-other-from-jail Seems rats have a sense of empathy! I would not have predicted this.
"You enter a room with two cages. One contains a friend, who is clearly distressed. The other contains a bar of chocolate, which clearly isn’t. What do you do? While a few people would probably go for the chocolate first (and you know who you are), most would choose to free the friend. And so, it seems, would a rat."
If rats do, I wonder what other animals would make the same choice.
Worms pass down traits for 100 generations *without* DNA How? Dunno. Still really cool!