A zookeeper described the 43-year-old orangutan who has lived at the zoo his whole life as an intelligent, thoughtful observer.

Paul O'Grady 's widower has opened up on the 'difficult decision' he has had to make in the wake of the star's death.

Tigers and monkeys and tapirs, oh my! Joel Sartore's latest book, "National Geographic Photo Ark: Babies," captures the ...