Big Love
In a mating ritual, male humpback whales leap, splash and fight. But researchers ask: just what does a female whale want?
Songs from the Deep
Tuning in to why humpbacks sing
Blood in the Water
Japan's lethal whale research draws criticism
Dogged
Primatologist Brian Hare investigates the social behavior of chimpanzees and bonobos in Africa. But dogs and foxes showed him the way
The Zuni Way
Though they embrace computers and TV, the secret of the tribe's unity lies in fealty to their past
Ahead in the Clouds
Susan Solomon helped patch the ozone hole. Now, as a leader of a major United Nations report—out this month—she's going after global warming
The Sound of Hoofs
In a breathtaking spectacle, wildebeest by the millions are on the move this month in the Serengeti
35 Who Made a Difference: Richard Leakey
The leader of the Hominid Gang asks what he can do for his continent
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