Cubs born to Sukiri on September 22 are latest in the National Zoo’s efforts to diversify gene pool of captive born cheetahs
These insects seem to have dispensed entirely of the need for males and their sperm
Wildlife author and journalist Rachel Nuwer discusses her new book <i>Poached</i> about one of the world's fastest-growing contraband industries
The genetic and neurological similarities between octopuses and humans shed light on how creatures became social beings
These birds, once a feature of the far north as reliable as ice, are becoming less and less common
Solving a longstanding puzzle, MIT researchers have developed a way of sending signals from underwater to airborne devices
A new forecasting model using years of bird migration data and weather radar could help us protect migrating birds from harm
New archeological findings suggest the Maya city state Copan dealt in a robust jaguar trade
A new study suggests young grassland songbirds postpone fledging in order to mooch off mom and dad as long as they can
Using a neutron scanner at Los Alamos, paleontologists are generating high-resolution imagery of early mammal fossils
The latest podcast “Sidedoor” travels with Smithsonian experts on the trail of the buzzing beasts known as the Aedes
Bug sprays with DEET feel oily and smell gross. But turning natural plant oils into commercial products isn't easy
The RangerBot is a new line of defense against coral-eating crown-of-thorns starfish
A growing body of evidence points to how animals are aware of death and will sometimes mourn for or ritualize their dead
With help from the fossil record, paleontologists are piecing together what might make one creature more vulnerable than another
A group of five adolescent male lions - dubbed the Musketeers - are wandering the desert looking to find their own kingdom
A group of orphaned lion cubs are facing an uncertain future
A biologist treks to the site where the little-known naturalist penned a paper on evolution that would spur on a rivalrous Charles Darwin
The "boy and his dog" tale is a piece of prehistoric fiction, but scientists are uncovering the true origins of our incredible relationship with dogs
Baby birds leaving the nest for the first time sometimes confuse urban lights for the moon and stars as they try and head out to sea from Witless Bay
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