Biology

The researchers used drone footage and tracking devices to analyze the behavior of 11 orcas in the northern Pacific Ocean.

Between Dives, Orcas Take Only a Single Breath

A new study finds the black-and-white marine mammals tend to make shorter, shallower dives compared to humpback and blue whales, making orcas the "sprinters" of the ocean

The sympathetic nervous system was thought to have evolved with jawed vertebrates. But lampreys—jawless, parasitic fish that suck out the blood of their hosts—have a simple one, per recent research.

Eerie Lampreys Hint at the Origins of Our 'Fight-or-Flight' Response and Sympathetic Nervous System

The jawless, parasitic fish largely haven't changed over the last 340 million years, but they might be better sources for studying our own evolution than thought, a recent study suggests

African wild dogs might use facial expressions to communicate with each other as they hunt in packs on the savanna.

Wild Dogs Have Muscles for 'Puppy Eyes,' Suggesting the Cute Expression Did Not Evolve Just for Humans

African wild dogs have the same well-developed eye muscles that domestic dogs use to make their signature pleading faces, a recent study finds

The Black Death killed tens of millions of people in the mid-1300s, but scientists and historians are still trying to figure out how it spread.

Did Body Lice Spread Bubonic Plague? Research Suggests the Parasites Are Better Vectors Than Thought

These blood-sucking insects are capable of transmitting the bacteria that caused the Black Death, according to a laboratory study

At least 138 howler monkeys have been found dead in the Mexican state of Tabasco since May 16.

Mexico's Howler Monkeys Are Dying, 'Falling Out of the Trees,' Amid Scorching Heat Wave

Veterinarians and volunteers are trying to save the threatened primates by hoisting buckets of water and food into trees, as well as providing medical care

Beachcombers stumbled upon the fish south of Cannon Beach, a small coastal town in northwest Oregon.

Beachcombers Discover Rare, Deep-Sea Anglerfish Washed Up on Oregon Coast

Most humans will never see a Pacific footballfish, as the creatures live at depths of 2,000 to 3,300 feet below the ocean's surface

A protein-DNA interaction, modeled by AlphaFold 3.

Google Releases A.I. That Can Predict How the Human Body's Molecules Behave, Boosting Drug Discovery Research

Called AlphaFold 3, the latest update of the software models the interactions of proteins with DNA, RNA and other molecules for the first time

Elephants use different greetings depending on whether the other animal is looking at them.

How Do Elephants Say Hello? Reunions Lead to Ear Flapping, Rumbling and Trunk Swinging in Greeting

New research explores how African savannah elephants use vocalizations, gestures and secretions when they meet up with companions

The world’s quietest room registers a background sound of -24.9 dBA.

In the Earth’s Quietest Room, You Can Hear Yourself Blink

Background noise in the custom-built chamber is actually measured in negative decibels, which means it’s below the threshold of human hearing

Sperm whales communicate by making clicks.

Scientists Discover a 'Phonetic Alphabet' Used by Sperm Whales, Moving One Step Closer to Decoding Their Chatter

Researchers used artificial intelligence to spot patterns in recordings of the marine mammals' vocalizations, uncovering the "building blocks of whale language"

Bumblebees, on the whole, are better adapted for cooler temperatures than for heat—one species, Bombus polaris, even lives in the Arctic.

Bumblebee Nests May Be Overheating With Rising Global Temperatures, Study Finds

Across various species and regions, bumblebee nests thrive between 82 and 89.6 degrees Fahrenheit—and climate change could make it harder to find habitats in that range

Ocelots have been listed as federally endangered in the U.S. since 1972.

Endangered Ocelots May Be Expanding Their Range in Texas

DNA testing of an ocelot killed in 2021 raises the possibility that the creatures may be roaming outside their established South Texas territory, which is currently their only stronghold in the country

The bamboo octocoral Isidella sp. displaying bioluminescence in the Bahamas in 2009.

Glowing Sea Creatures Have Been Lighting Up the Oceans for More Than Half a Billion Years

New research on branching animals known as octocorals pushes the early days of bioluminescence back over 200 million years

Scientists brought to life the silent, sleeping songs of two great kiskadees.

Scientists Translate Sleeping Birds' Silent Songs Into Sound—and They May Have Recorded a Nightmare

Using surgically implanted electrodes and modeling, researchers brought to life the vocal muscle activity of sleeping great kiskadees

Hibernating common eastern bumblebee queens survived for a week while submerged underwater in a lab.

Hibernating Bumblebee Queens Can Survive Underwater for Up to a Week, Study Finds

Researchers discovered the insects’ unexpected superpower during an accidental laboratory snafu

The two emerging broods of cicadas will appear in states across the Southeast and Midwest. One of the cicadas in the photo above, is infected with a fungal parasite that has replaced its abdomen.

Up to a Trillion Cicadas Could Emerge in the U.S. Later This Spring

Two specific broods will appear together for the first time since 1803

Fortunately, the driver suffered only minor injuries when a tanker truck of salmon rolled onto its roof in Oregon.

77,000 Young Salmon Were Dumped Into the Wrong Creek After a Truck Crashed in Oregon

The spring Chinook salmon smolts should still be able to find their way to the Pacific Ocean and help boost the threatened population of the fish, officials say, though another 25,000 salmon died in the accident

Wildlife biologists are trying to figure out what's killing smalltooth sawfish and other species in Florida.

Florida Fish Are Mysteriously Dying After 'Spinning and Whirling,' and Scientists Can't Explain It

The abnormal behavior has raised special concerns about the endangered smalltooth sawfish, an odd-looking ray with chainsaw-like teeth, as 28 of them have died

Black-capped chickadees' ability to remember where they've stashed food helps them survive barren winters.

Black-Capped Chickadees Are Masters of Memory—and Scientists Are Finding Out Why

The small birds use brain “barcodes” to remember where they stash food, according to new research

Japanese tits have previously been observed combining different calls into phrases to convey meanings. The birds may also use their wings to signal to their partner that they should enter the nest first.

These Small Birds Flutter Their Wings to Say 'After You' to Their Partner

A new study of Japanese tits provides the first evidence of non-primate animals using gestures to convey messages

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