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Science / Wildlife

Planktonic foraminifera assemblage from Caribbean sediments that provide an accurate picture of the species community before human influence. Each shell is less than one millimeter in size.

Plankton Haven’t Been the Same Since the Industrial Revolution

Changes in plankton populations over the past centuries correlate with rising sea temperatures

Reconstructed color patterns of Sinosauropteryx based on the pigmentation of fossil plumage. The dinosaur is portrayed in the predicted open habitat in which it lived around the Jehol lakes, preying on the lizard Dalinghosaurus.

The Colors of Dinosaurs Open a New Window to Study the Past

Old fossils and new technology are coloring in life’s prehistoric palette

Bedbugs, which were previously thought to be about 50 million years old, could be much older, new genetic and fossil evidence suggests.

Bedbugs Scurried the Earth Alongside the Dinosaurs 100 Million Years Ago

Researchers calculate that the pests evolved long before bats, which were thought to be their first hosts

Large ant colonies with tens or hundreds of thousands of members engage in all-out war with other colonies as they compete for resources.

When It Comes to Waging War, Ants and Humans Have a Lot in Common

In both humans and social insects, the capacity to engage in total war seems to hinge on population numbers

Mosquito-borne diseases, such as Zika, malaria and Rift Valley Fever, threaten billions of people around the world.

How Scientists Use Climate Models to Predict Mosquito-Borne Disease Outbreaks

The ebb and flow of rainy seasons corresponds with the hatching of millions of mosquitoes—and the spread of diseases they carry

Life reconstruction of the bizarre membranous-winged Ambopteryx longibrachium.

Newly Discovered Bat-Like Dinosaur Reveals the Intricacies of Prehistoric Flight

Though Ambopteryx longibrachium was likely a glider, the fossil is helping scientists discover how dinosaurs first took to the skies

A starfish floating on the coral reef, Dominican Republic.

One Million Species at Risk of Extinction, Threatening Human Communities Around the World, U.N. Report Warns

A global assessment compiled by hundreds of scientists found that humans are inflicting staggering damage on the world’s biodiversity

Scallops can have up to 200 eyes, although scientists still don't know exactly how they all work together to help the mollusks see.

What Scallops’ Many Eyes Can Teach Us About the Evolution of Vision

Scallop eyes, which function similar to telescopes, are even more complex than scientists previously knew

Even large equines can get a little hoarse.

New Research

Even Mild Cases of Asthma Can Slow Down Elite Racehorses

Researchers found 80 percent of racehorses surveyed suffered from airway inflammation that impacts performance

The first test of a thermonuclear weapon, or a hydrogen bomb, codenamed Ivy Mike and conducted by the United States in 1952 over the island of Elugelab in Enewetak Atoll in the Pacific Ocean.

Particles From Cold War Nuclear Bomb Tests Found in Deepest Parts of the Ocean

Crustaceans in the Mariana Trench and other underwater canyons feed on food from the surface laced with carbon-14 from Cold War bomb tests

Argali are the largest wild sheep in the world, weighing up to 400 pounds.

The Decades-Long Effort to Protect the World’s Largest Sheep

In the Gobi Desert, where argali roam, a group of Mongolian researchers work to conserve the wild sheep populations

Close-up of a wildebeest, also called gnus or wildebai, in the grasslands of the Masai Mara in Kenya, August 2018.

Twelve Epic Migratory Journeys Animals Take Every Spring

As temperatures rise and foliage blooms in the north, creatures from insects to whales set out for long treks across the planet

Scientists and ocean advocates are hoping to find a way to both protect sea turtles and other threatened species and help fishermen make a living.

How Scientists Are Using Real-Time Data to Help Fishermen Avoid Bycatch

Using a strategy called dynamic ocean management, researchers are creating tools to forecast where fish will be—and where endangered species won’t be

This moth specimen was mistakenly identified as a butterfly in 1793, leaving biologists to wonder what happened to the missing "butterfly" for more than 200 years.

One of the ‘Rarest Butterflies Ever’ May Have Been a Moth All Along

A species description from more than two centuries ago has fooled scientists until now

Colors in nature can be produced by both pigments that absorb some light and microscopic structures that change the wavelength of light.

How Do Scientists Know What Colors Prehistoric Animals Were?

Fossil expert Maria McNamara explains how paleontologists are starting to investigate the hues of the past

Roxie Laybourne's work changed the role of museums in public life by turning the Smithsonian’s collection of thousands of birds into an applied science tool.

Meet Roxie Laybourne, the Feather Detective Who Changed Aviation

A new Sidedoor episode tells the story of Roxy Laybourne, a Smithsonian scientist who pioneered the field of forensic ornithology

Keepers suspect that the mother might already be pregnant with a second.

Is That Wallaby Sprouting a Second Head?

Last week, the first baby wallaby to be born at the Smithsonian’s National Zoo in three decades poked its head out of its mother’s pouch

The Cambrian Period was a time of remarkable diversification of life when many of the animal groups that exist today first appear in the fossil record.

Fossil Treasure Trove of Ancient Animals Unearthed in China

The fossils from the Cambrian Period include dozens of new species and provide a window into life more than 500 million years ago

A drinking horn made from the horn of an aurochs bull.

Testing the DNA in Museum Artifacts Can Unlock New Natural History, but Is it Worth the Potential Damage?

Museums house a wealth of rare animal specimens, such as arctic clothing, medieval parchment and Viking drinking horns, but DNA testing can be destructive

Fossilized bones from the distant past and the bones that constitute our skeletons today are perhaps the best tool to help scientists learn about the evolution of life.

How Bone Connects Life’s Past, Present and Future

A new book dives into the history of osteology, the study of bones, and everything we can learn from the skeletons life leaves behind

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