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Biology

Slime mold in a petri dish. New research finds that slime molds can store memories by changing the diameter of the branching tubes they use to explore their environment, allowing them to keep track of food sources.

New Research

How the Brainless Slime Mold Stores Memories

New research finds the organism can remember the location of food by altering the diameter of the creeping tendrils it uses to explore its surroundings

A statue of Charles Darwin sits in the Natural History Museum in London. The scientist's book 'Descent of Man' was published in 1871.

How Darwin’s ‘Descent of Man’ Holds Up 150 Years After Publication

Questions still swirl around the author’s theories about sexual selection and the evolution of minds and morals

Only the flower on the far left is real. The rest are made of fungus.

New Research

This Fungus Makes Convincing Fake Flowers From Scratch

The yellow, flower-shaped growths lure in pollinator insects to spread the fungus’ spores

The protein RAC1 can cause some sperm to spin in circles until they die

New Research

Mice Sperm Sabotage Other Swimmers With Poison

A study in mice found that poison-spewing sperm make others swim in circles, but carry the antidote for themselves

A 38-foot male whale washed up along Sandy Key in the Florida Everglades in January 2019. Researchers have now determined that the whale is a member of a previously unknown species they've dubbed Rice's whale. A necropsy revealed a 3-inch hunk of plastic lodged in its gut that may have contributed to its demise.

New Research

Large New Whale Species Identified in the Gulf of Mexico

Named Rice’s whale, the species can reach lengths of 42 feet and lives in the Gulf’s warm waters all year

The male of a newly discovered species named Brookesia nana may be the smallest adult reptile ever found.

New Research

Chameleon Discovered in Madagascar May Be World’s Smallest Reptile

The male of the newly described species measured just half an inch long from his nose to the base of his tail

An oceanic whitetip shark swimming in the open ocean. This species was common in the 1970s but its population has since declined by 98 percent, according to a new study.

New Research

Oceanic Sharks and Rays Have Declined 70% Since 1970

Fishing fleets have indiscriminately slaughtered sharks for decades and a new study catalogues the environmental damage done

Silver-washed fritillary butterfly

New Research

Study Reveals the Secrets of Butterfly Flight

The fluttering insects create tiny jets of air by clapping their flexible wings together, which may help them evade predators

If the platypus looks like a mixture of bird and mammal features, it's because it is.

New Research

Platypus Genes Are Just as Odd as the Creature Itself

These egg-laying, lactating animals have genes in common with mammals as well as birds

By studying recent mass extinctions on islands like Hawaii, Dr. Helen James is painting a picture of bird biodiversity today. Her research involves digging up fossils in caves to study bygone species, like the Kioea.

Smithsonian Voices

Meet One of the Curators Behind the Smithsonian’s 640,000 Birds

Helen James’ work on avian extinction helps in understanding how bird species today respond to threats like human encroachment and environmental change

Scientists estimate that the snakes are responsible for decimating 90 to 99 percent of the small mammal population, and they're also known to strangle deer, alligators and birds.

Could Invasive Burmese Pythons Soon Be on the Menu in Florida?

The pythons have devastated the Everglades, and eating them could help control their growing population

Projects that harness the public to make observations and report data about the health of our environment are growing. Anyone can join—no PhDs needed.

Innovation for Good

Twenty-Four Ways to Turn Outdoor Passions Into Citizen Science

Heading into the new year, consider collecting scientific data while skiing, hiking, surfing, biking and partaking in other adventures

An octopus in the Red Sea engaged in a collaborative hunt with several fish.

New Research

Watch Octopuses Sucker-Punch Fish

Researchers caught the eight-armed sea creatures in the Red Sea slugging fish during collaborative hunts

One specimen of the ultra-black fish species Anoplogaster cornuta.

Innovation for Good

Ten Scientific Discoveries From 2020 That May Lead to New Inventions

From soaring snakes to surfing suckerfish, nature is an endless source of inspiration

Mistletoe is best known for its role in holiday festivities, as seen on this Christmas card from 1886, and it features in ancient lore of many cultures, whether Celtic druids or Scandinavian gods.

The Biology of Mistletoe

Best known as a holiday trimming, the parasitic plant is a botanical luminary in its own right

The team's findings reflect the toll of the ivory trade and habitat destruction.

Ivory From 16th-Century Shipwreck Yields Clues to African Elephants’ Decline

Researchers extracted DNA from tusks found in the wreckage of the “Bom Jesus,” a treasure-laden vessel that sank in 1533

Denali's dogsled teams mush for weeks at a time to the far-flung corners of a park that stretches over 6 million acres.

How Denali National Park’s Sled Dogs Prepare for Winter

For nearly a century, park rangers have relied on dogsledding to patrol the public land and collect data for scientists

Asian honey bees applying animal feces at the entrance of their hives to ward off attacks from hornets.

New Research

Asian Bees Plaster Hives With Feces to Defend Against Hornet Attacks

Researchers say the surprising behavior could constitute tool use, which would be a first for honey bees

The spectacled tyrant (Hymenops perspicillatus) inhabits harsh, dry deserts, which new research suggests tend to produce new species at a higher rate than lush, biodiverse places like the Amazon.

New Research

Earth’s Harshest Ecosystems May Birth New Species Fastest

A genetic study of nearly 1,300 different birds suggests places with fewer species spit out new ones more frequently than biodiversity hotspots

AlphaFold's protein structure in blue is shown overlaid with the lab results in green for two kinds of proteins.

New Research

Breakthrough A.I. Makes Huge Leap Toward Solving 50-Year-Old Problem in Biology

Proteins are vital biological molecules, and it can require years of lab-based experiments to tease out the 3-D shape of just one

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