Science

Biologists of the past often explained the vast spectrum of animal genitalia with "lock-and-key": the hypothesis that vaginas and penises had primarily evolved to fit into each other mechanically. Today, there is a growing appreciation for the myriad of forces acting on genitals.

Why Have Female Animals Evolved Such Wild Genitals?

From ducks to dolphins, females have developed sex organs that help them deter undesirable suitors and derive pleasure from non-reproductive behavior

Male Svalbard walruses cluster by the shore. Each weighs an average of about 3,000 pounds and is up to ten feet long.

Planet Positive

A Welcome Comeback for Norway's Walruses

A hunting ban has fostered the return of a nearly extinct species

Lions spritzed with the hormone oxytocin stayed closer together.

Planet Positive

Can Spraying Lions With the 'Love Hormone' Help Them Live Together?

Researchers administered oxytocin to captive animals, and preliminary results showed the big cats were less hostile towards strangers

A rare sighting of a northern spring salamander on migration night. These nocturnal creatures spend their days hiding under logs and stones.

Planet Positive

Why Did the Salamander Cross the Road?

To reproduce, of course. And a band of volunteers gathers at night to help it—and countless other amphibians—get to the other side

A vessel nears the commercial wind farm 3.8 miles off the coast of Block Island.

Planet Positive

This Historic Community Is Pushing the Nation Toward a Wind Power Revolution

Block Island, off the New England coast, overcame political strife to lead the way on energy independence

Dried cochineal insects — shown here in the center of the photo — can be processed to create several natural dyes such as carmine and cochineal extract. These products get their red hue from carminic acid, a chemical found within the insect.

Scientists Are Making Cochineal, a Red Dye From Bugs, in the Lab

Used to color foods and cosmetics, carminic acid is traditionally 'farmed' from an insect. But researchers are moving to engineer it in microbes

A captured fisher is released after undergoing sedation and physical examination, a part of the Hoopa Valley Tribe’s longstanding efforts to monitor the culturally important species.

Inside the Hoopa Valley Tribe's Quest to Understand a Rare Carnivore

The tribe maintains some of the most detailed documentation of fishers in North America

Eileen McSaveney (left) and Terry Tickhill (right) use a hand augur to drill Lake Vanda, Wright Valley, Antarctica, during the 1969-1970 field season. Water collected during this effort was used to date the lake.

Ten Pioneering Women of Antarctica and the Places Named for Them

These coves, peaks, glaciers and other landmarks honor female explorers and scientists who have contributed to our understanding of the continent

Boas constrict their prey to death.

How Boa Constrictors Breathe While Squeezing the Life Out of Their Prey

Researchers outfitted the snakes with electrodes and scanned them using X-rays to see how the flexing predators managed to take in air

A Spinosaurs hunts a Onchopristis underwater. Dense bones helped the predator swim at depth.

Heavy Bones Helped Some Spinosaurs Swim

The crock-snouted dinosaurs were just as capable in the water as on land

For many behind the so-called anti-vax movement, faith is the ultimate protection. At an anti-shutdown rally in Harrisburg, Pennsylvania, a protester painted the hood of his truck with the motto “Jesus is my vaccine.”

What the History of Science and Religion Reveals About Today's Divisive Covid Debates

A new Smithsonian book and exhibition explores the ongoing conflicts and reconciliations between faith and technology in American life

This illustration shows NASA's InSight spacecraft with its instruments deployed on the Martian surface.

This Important Geophysical Robot on Mars May Die Soon

The InSight observatory has a seismometer and a heat probe, which have enabled it to gather data on rock layers below the planet's soil

A first grade student receives a Covid-19 vaccine in Chicago, Illinois

Six Important Things to Know About Covid Vaccination in Children

Experts share the latest research and advice about protecting kids

Bottlenose dolphins swim in the Moray Firth Special Area of Conservation off Scotland. The photo was taken by an aerial drone.

In a First, Scientists Use Drones to Detect Pregnant Dolphins

Researchers say the new tech will help them better understand bottlenose dolphin reproduction

A fossil of a Diegoaelurus jawbone was recovered from a construction site in Oceanside, California.

Paleontologists Uncover the Oldest Sabertoothed Predator

Fossil jaw shows earliest evidence of a specialized carnivore with scimitar-shaped fangs

Further analysis of bones collected from the Bluefish Caves in Yukon is expanding scientists’ understanding of what early Americans were up to

What Were Humans Doing in the Yukon 24,000 Years Ago?

Scientists have examined remains from caves and think the shelters served as temporary camps for hunters who targeted horses

Red pandas are classified as endangered and are legally protected in their home countries.

Before Seeing 'Turning Red,' Learn These Amazing Red Panda Facts

Delight your friends with these eight surprising details about the furry creatures

Dorchester County artist Michael Rosato painted a mural of Harriet Tubman in Cambridge, Maryland.

Women Who Shaped History

Harriet Tubman Is Famous for Being an Abolitionist and Political Activist, but She Was Also a Naturalist

The Underground Railroad conductor's understanding of botany, wildlife biology, geography and astronomy allowed her to guide herself and others to safety

The Venus flytrap Dionaea muscipula is the most sophisticated of the carnivorous plants. Its traps snap shut in a fraction of a second, imprisoning prey in a cage of teeth that line the edges of the trap.

How Carnivorous Plants Evolved

Botanists are beginning to trace the origins of their gruesome appetites

To better understand how hypoxia—dangerously low oxygen levels—affects crabs, researchers and fishers are working together to find a way to adjust to changing conditions in the northeast Pacific Ocean.

A New Tool May Help Crab Fishers Sidestep Dead Zones

Low-cost sensors that fit into crab pots could provide real-time data on oxygen fluctuations in the ocean

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