Photo Gallery: Experience the rich diversity of America's national parks
Photo Gallery: A slideshow of the world's strangest plants
An ancient plant becomes a new sensation
Elephant seals descend on California beaches for breeding season
Biologist Gudrun Pflueger talks about her encounter with a Canadian pack
Kanini and Quincy
An Australian conservation group uses Hubble space telescope software to identify animals by their markings
Where do the elusive mountain climbers go? Researchers have finally learned some answers
Marketing through pseudoscience
Wildlife biologist Hemanta Mishra's efforts to save the endangered Indian rhinoceros
National Zoo scientist Adrienne Crosier discusses how scientists are using artificialinsemination to rescue the species
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