Rats Forgo Treats to Rescue a Distressed Cage Mate

Somewhere along the way, “rat” became the operative term for a double-crossing, backstabbing person who betrays their friends. But in reality, rats — the cheese-loving kind — won’t hesitate to help a fellow rat in dire straits.

In a new study, researchers placed two rats in a cage divided in half by a wall with a small door. On one side of the wall, a rat sat high and dry. But on the other side, a second rat was soaked and left to sit in a pool of water; rats hate getting wet. When the dr

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