animal behavior

(Newser) - A giant panda once thought to be male gave birth to twin cubs this week in China. Jinzhu was believed to be male at birth, but the panda showed zero sexual interest after being shipped to Japan in 2000 to breed with a female. When scientists attempted artificial insemination, they...

(Newser) - Rats may be repulsive to some, but scientists are finding that they're a lot like humans. A recent crop of behavioral studies shows that rats are astonishingly self-aware, Natalie Angier reports in today's Times. They laugh when tickled and dream in epic narratives. There are even rat optimists and rat...