Jon Sperling secretly spread a non-native species across the Northeast. “It’s insane what this guy was doing,” a biologist ...

Behind the scenes at a Chicago zoo, chimpanzees who spent years entertaining humans are learning to befriend their own kind.

A capybara - the world's largest rodent - and a critically endangered cockatoo were among the animals that escaped from Irish ...

An Amtrak transformer explosion ignited a fire on the train tracks in the Bronx on Tuesday, causing significant service ...

Last week, 43 monkeys, all of them young female rhesus macaques, escaped from the Alpha Genesis research laboratory in ...