Wildlife

Spot the impostor: A cuckoo finch chick (left) and a tawny-flanked prinia chick (right) open their beaks for a meal.

Parasitic Cuckoo Finches Use an Egg Overload to Evade Host Defenses

The more eggs a parasitic cuckoo finch lays in its host's nest, the more likely a discerning foster parent will accept the finch's young as its own

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How One Moth Species Can Jam Bats’ Sonar Systems

Bertholdia trigona, a moth native to the Arizona desert, emits ultrasonic clicks at a rate of 4,500 times per second to blur bats' acoustic vision

Hairy woodpecker (Picoides villosus)

Diana Beltran Herrera’s Flock of Paper Birds

We are not talking origami here. The Colombian artist has created paper sculptures of more than 100 species, and they are startlingly realistic

The panda cub receiving her first veterinary exam

CUTE PHOTOS: Panda Cub is Thriving, More Than Doubles in Size

Today the Zoo's veterinarians gave the giant panda cub a full exam and pronounced the cub healthy and thriving

Migaloo, the white whale

Call Me Migaloo: The Story Behind Real-Life White Whales

White whales, such as the recently spotted humpback nicknamed Migaloo, are rare and elusive creatures. How many are there and why are they white?

Blue whale earplugs can reveal some of these aquatic giants’ life events.

Blue Whale Earwax Reveals Pollution Accumulated Over a Lifetime

Earwax collected from a beached whale shows that the creature ingested a host of toxins, such as DDT and mercury, throughout its life

Oceanographer Gareth Lawson, who studies pteropods, was able to identify Kavanagh’s sculptures to species, such as this Limacina helicina.

The Gorgeous Shapes of Sea Butterflies

Cornelia Kavanagh's sculptures magnify tiny sea butterflies—ocean acidification's unlikely mascots—hundreds of times

The small hopping insect Issus coleoptratus uses toothed gears (magnified above with an electron microscope) to precisely synchronize the kicks of its hind legs as it jumps forward.

This Insect Has The Only Mechanical Gears Ever Found in Nature

The small hopping insect <i>Issus coleoptratus</i> uses toothed gears on its joints to precisely synchronize the kicks of its hind legs as it jumps forward

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Video: A Drone Mates With a Queen Bee in Glorious Slow-Motion

For the new documentary More Than Honey, filmmakers captured the insects mating in midair

The wise long-eared owl keeps his cool under pressure.

Bigger-Brained Birds Keep Their Cool Under Pressure

Birds with high ratios of brain size to body size maintain lower levels of stress hormones in their blood compared to their less intellectual counterparts

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Energy Innovation

Could Panda Poop Be the Secret to More Efficient Biofuel?

Unique microbes in a panda's gut efficiently break down bamboo--mass producing these microbes could help scientists make sustainable biofuels

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This Next-Generation Bug Spray Could Make You Invisible to Mosquitoes

Researchers are analyzing chemicals naturally present on human skin that disrupt mosquitoes' ability to smell us

Hydraena ateneo, a millimeter-long water beetle, was found living in the forested creeks of Ateneo de Manila University’s forested campus.

A New Beetle Species Was Just Discovered Right Outside the World’s Densest City

Hydraena ateneo, a previously unknown water beetle, was found living in the forested creeks of a university's campus near Manila, Philippines

Panda Watch: It’s a Girl!

The National Zoo confirmed that Mei Xiang's cub is female

Cuban Emerald (Chlorostilbon ricordii), Western Foundation of Vertebrate Zoology, Collected from Andros Island, Bahamas, on January 22, 1988.

The Art of the Bird’s Nest

The architectural masterpieces of numerous bird species are the subject of Sharon Beals' latest photo series—on display at the National Academy of Sciences

A colorized microscopic image of a viral particle of the Ebola virus. The virus, which scientists believe originates in non-human primates, causes Ebola hemorrhagic fever, a deadly disease in humans, monkeys, gorillas and chimpanzees.

Cracking the Code of the Human Genome

A Minimum of 320,000 Mammalian Viruses Await Discovery

If we invested just $1.4 billion, we could discover 85 percent of all mammalian viruses, potentially lessening the impact of the next emerging disease

Unlike the chest-beating primates of popular imagination, Brazil’s northern muriquis are easygoing and highly cooperative.

Humans Would Be Better Off If They Monkeyed Around Like the Muriquis

Biologist Karen Strier has been studying these peace-loving Brazilian primates and their egalitarian lifestyle for decades

What explains the vivid colors of the strawberry poison-dart frog?

How Do Tropical Frogs Get Their Stunning Colors?

The vibrant hues that dot the rainforest landscape help them avoid predators and win mates

In Montana, ground squirrels have been tunneling under a Air Force base’s fences and setting off intruder alarms, prompting researchers to look for a solution.

How One Nuclear Missile Base Is Battling Ground Squirrels

In Montana, squirrels have been tunneling under a base's fences and setting off intruder alarms, prompting researchers to strengthen its defenses

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New Video of Mei Xiang’s Squawking Baby Panda

The National Zoo's newest addition is already keeping mom up at night

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