that way we know we’re from tumblr without revealing anything

I’m just going to say this to strangers until i find a tumblr person

must keep reblogering!! Im going to be so suspicious if any one tells me this now!

Remember the answer is: I stole them from the president.

The free rat, occasionally hearing distress calls from its compatriot, learned to open the cage and did so with greater efficiency over time. It would release the other animal even if there wasn’t the payoff of a reunion with it. Astonishingly, if given access to a small hoard of chocolate chips, the free rat would usually save at least one treat for the captive — which is a lot to expect of a rat.

The researchers came to the unavoidable conclusion that what they were seeing was empathy — and apparently selfless behavior driven by that mental state.