Like humans, dogs are prone to yawning when they see someone else do it—and a new study shows that they yawn most frequently in response to their owner
Tests on captive animals reveal that the marine mammals now hold the record for retaining memories longer than any other non-human species
A popular online quiz matches you with the shark species that best represents you, but individuals within a species can vary greatly, experts say
Intrigued by the powerful hunters, artists have made tiger sharks, great whites and hammerheads the subjects of sculpture
Shark tourism, cannibalistic shark embryos, wetsuits designed to camouflage from sharks and more
Israeli physicist Eshel Ben-Jacob uses bacteria as an art medium, shaping colonies in petri dishes into bold patterns
Watch as the popular crustacean gets snared by its predator's tentacles. Will it survive?
Some tigers trek the human-filled landscape between nature preserves to find mates, but such opportunities to ensure genetic diversity are getting rarer
Studying nematodes as life leaves them may lead to insights into exactly how death travels through the body, and, perhaps, whether we can delay it
Watch the pandas munch bamboo on 24-hour live-stream cams at the Zoo and check out new video of Mei Xiang
Audio experiments show that the marine mammals each have their own whistle, and respond to hearing their distinct whistle by calling right back
The 13-year-old Tumai gave birth to the Zoo's first cheetah cubs in 2004
Although their perception of color is limited, dogs discriminate between objects based on their hue--a finding that may change the way dogs are trained
The ancient attack proves once and for all that the T. Rex was a hunter, not just a scavenger
Take a peek at some of the living artwork entered in an international competition in Quebec this summer
Blood type, metabolism, exercise, shirt color and even drinking beer can make individuals especially delicious to mosquitoes
Typically slow-growing glass sponge communities are popping up quickly now that disappearing shelf ice has changed ocean conditions around Antarctica
Unlike any other small mammal, bats stretch their tendons to store and release energy, helping the creatures launch into the air
Staph microbes with resistance to common treatments are much more common in industrial farms than antibiotic-free operations
Forty countries that receive low levels of aid for environmental conservation contain about one-third of the world's threatened species
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