Skip to main content

Subscribe to Smithsonian magazine and get a FREE tote.

Animals

A chum salmon in Alaska's Katmai National Park and Preserve. Salmon numbers are declining in some places due in part to climate change.

Climate Change Is Pushing Salmon North in Alaska, Scientists Say

Researchers recently found about 100 chum salmon spawning in the Arctic, suggesting the species is shifting to new habitats

The female Pacific footballfish measured about 14 inches long.

Rare Deep-Sea Anglerfish Washes Up on a California Beach

The finding marks the second time in three years that an elusive Pacific footballfish has been found on the sand at Crystal Cove State Park

North Atlantic right whales face threats of entanglement in fishing gear and injuries caused by ships.

North Atlantic Right Whale Numbers May Be Stabilizing at Last

After a decade of decline, the latest population estimate is good news—but conservationists say we “have a long ways to go” to safeguard the marine mammals

Bison were nearly hunted to extinction but are now thriving in several national parks, including Theodore Roosevelt National Park in North Dakota.

The Ecological Benefits of Rehoming a National Park’s Booming Bison Population

In Theodore Roosevelt National Park, staffers are keeping the local ecosystem in balance by sending 300 bison to Native American tribes

Chinese mitten crabs compete with native species for habitat and food.

These Furry-Clawed Crabs Are Wreaking Havoc in the United Kingdom

Conservation officials have installed the first Chinese mitten crab trap in England, and they are asking the public to report any sightings

The cave lion skeleton from Siegsdorf in Germany with a replica of a wooden spear that may have been used to kill it. The authors theorize that Neanderthals may have stabbed the lion while it was resting or after it had been injured.

Neanderthals May Have Hunted Cave Lions

Researchers say well-preserved bones may be the earliest direct evidence of the hunting of large predators

Mass Audubon's science coordinator Mark Faherty examines a horseshoe crab in Pleasant Bay, where he has conducted research on them for years.

New Synthetic Horseshoe Crab Blood Could Mean Pharma Won’t Bleed the Species Dry

The “living fossils” have been vital for testing intravenous drugs, but a few large pharmaceutical companies are using a lab-made compound instead

Grazer, also known as 128 Grazer, stands in a river in September 2023, after bulking up for hibernation.

Discover Alaska

Meet Grazer, the Winner of Fat Bear Week 2023

A fiercely aggressive mother and a skilled angler, the massive brown bear has been crowned this year’s champion in the annual online popularity contest

With their mating season approaching, two male Nubian ibex fight for supremacy on a cliffside. The photograph won the Animals in their Environment category.

See 12 Winning Images From the Wildlife Photographer of the Year Contest

The stunning entries showcase the behaviors of ancient and elusive species, from horseshoe crabs to tapirs and orcas—as well as the threats they face

Because of their size, cats have relatively short vocal cords—so how are they able to produce such low-frequency sounds when purring?

How Do Cats Purr? Scientists May Now Have an Answer

Domestic cats produce low-frequency vocalizations when purring, an unusual ability for their small size

The Field Museum collects bodies of birds that collide with windows. The birds are processed and cleaned by the museum’s flesh-eating beetle colony.

Almost 1,000 Birds Died in One Night From Striking a Chicago Building

Another 1,000 were killed in window collisions across the downtown area, amid calls for more bird-friendly architecture and reduced light pollution

Researchers are still trying to confirm the cause of death, but they suspect the high water temperatures are to blame.

At Least 125 River Dolphins Have Died Amid Drought and Heat in Brazilian Amazon

Though the pink animals’ cause of death is not confirmed, temperatures in the remote Lake Tefé reached 102 degrees Fahrenheit in late September

Jackdaws are social birds that mate for life and breed in colonies.

These Birds Will Switch Companions to Earn Food but Stick With Family, Study Suggests

Jackdaws, cognitively complex relatives of crows, have intricate social dynamics and mate for life

Mammal taxidermy under ultraviolet light: (a) polar bear, (b) southern marsupial mole, (c) greater bilby, (d) mountain zebra, (e) bare-nosed wombat, (f) six-banded armadillo, (g) orange leaf-nosed bat, (h) quenda, (i) leopard, (j) Asian palm civet.

More Mammals Can Glow in the Dark Than Previously Thought

A new study found that 125 different mammal species are fluorescent under ultraviolet light, suggesting the property is widespread

A silky anteater, small enough to sit comfortably in your palm, rests in the canopy of a mangrove forest in Brazil’s Parnaíba Delta.

This Fluffy Little Anteater May Be a New Species

The animals eke out a living in a pocket of mangroves on Brazil’s Atlantic coast

Chilobrachys natanicharum, the electric blue tarantula

See the New ‘Enchanting’ Electric Blue Tarantula Discovered in Thailand

Blue is one of the rarest colors in nature, but this arachnid achieves the bright hue through special structures in its hair

If you want to cut meat out of your diet but are having a hard time, a new study suggests your genetics may be responsible.

Maintaining a Vegetarian Diet Might Be in Your Genes

New research has identified three genes that are strongly linked to vegetarianism and 31 others that might also play a role in sticking to a meatless diet

The now-extinct golden toad in a 1978 picture taken in Costa Rica.

Climate Change Is Pushing Many of the World’s Amphibians Closer to Extinction

Just over 40 percent of amphibian species are at risk of going extinct, and humans’ fossil fuel use is partly to blame, according to a new assessment

The illegal trade of wildlife may include animals or plants, or parts of them, such as roots, stems, skin, bones or antlers.

A Look Inside Wildlife Crime Scene Investigators

Scientists are using the latest in DNA fingerprinting to combat the multibillion-dollar business of trafficking plants and animals

A killer whale in the Salish Sea is observed harassing a porpoise.

Why Do Orcas Keep Harassing Porpoises?

An endangered group of killer whales in the Pacific Northwest has been toying with porpoises for decades—and new research offers some possible explanations

Page 56 of 224