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
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
We are not talking origami here. The Colombian artist has created paper sculptures of more than 100 species, and they are startlingly realistic
Today the Zoo's veterinarians gave the giant panda cub a full exam and pronounced the cub healthy and thriving
White whales, such as the recently spotted humpback nicknamed Migaloo, are rare and elusive creatures. How many are there and why are they white?
Earwax collected from a beached whale shows that the creature ingested a host of toxins, such as DDT and mercury, throughout its life
Cornelia Kavanagh's sculptures magnify tiny sea butterflies—ocean acidification's unlikely mascots—hundreds of times
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
For the new documentary More Than Honey, filmmakers captured the insects mating in midair
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
Unique microbes in a panda's gut efficiently break down bamboo--mass producing these microbes could help scientists make sustainable biofuels
Researchers are analyzing chemicals naturally present on human skin that disrupt mosquitoes' ability to smell us
Hydraena ateneo, a previously unknown water beetle, was found living in the forested creeks of a university's campus near Manila, Philippines
The National Zoo confirmed that Mei Xiang's cub is female
The architectural masterpieces of numerous bird species are the subject of Sharon Beals' latest photo series—on display at the National Academy of Sciences
Cracking the Code of the Human Genome
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
Biologist Karen Strier has been studying these peace-loving Brazilian primates and their egalitarian lifestyle for decades
The vibrant hues that dot the rainforest landscape help them avoid predators and win mates
In Montana, squirrels have been tunneling under a base's fences and setting off intruder alarms, prompting researchers to strengthen its defenses
The National Zoo's newest addition is already keeping mom up at night
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