Tree frogs, conservation maps and the northern swordtail fish
Development threatens to block the migration of pronghorn antelopes. Without new protections, conservationists say, the animals are running out of time
A plummeting cougar population alters the ecosystem at Zion National Park
The first evidence that elephants can recognize themselves
When elephants began dying, Peter Beard suspected that poachers were not entirely to blame
Bugs in trees and kids in labs get their due in a new book by "Canopy Meg"
Parasitic plants, zebra tarantulas and wobbles in Earth's orbit
A new strategy to curb the spread of gypsy moths
A coastal community struggles to preserve the North Carolina "mullet blow"
Killer whales, trap-jaw ants and dinosaurs
"Bonobo Paradise" is an 86-acre sanctuary set in verdant hills 20 miles south of Kinshasa, Democratic Republic of the Congo
Erich Jarvis dreamed of becoming a ballet star. Now the scientist's studies of how birds learn to sing are forging a new understanding of the human brain
Bonobos have an impressive vocabulary, especially when it comes to snacks
Civil war has threatened the existence of wild bonobos, while new research on the hypersexual primates challenges their peace-loving reputation
Kemper talks about how cougars have been hated throughout history and what surprised him while researching the animals
Mountain lions are thought to be multiplying in the West and heading east. Can we learn to live with these beautiful, elusive creatures?
This month, pandas and other exotic creatures go on view at the National Zoo's new Asia Trail
Figs, canary songs, whales with legs, ancient flowering shrubs and beaver dams
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