Chimpanzees
Sex, Empathy, Jealousy: How Emotions And Behavior Of Other Primates Mirror Our Own
When Frans de Waal started studying nonhuman primates, in the Netherlands more than 40 years ago, he was told not to consider the emotions of the animals he was observing.
The Movie-Star Chimpanzee's Retirement Plan
Once performing chimpanzees grow too strong and willful to continue their acting careers and returning to the wild is no longer an option, where do they go? Journalist Charles Siebert discusses his new book, which answers the question for one such chimp.
The Surprisingly Social Gray Whale
Journalist Charles Siebert and wildlife biologist Dr. Toni Frohoff explain the uncharacteristically friendly behavior of gray whales off the coast of California.