Biology

The tear gland organoids grown from stem cells produce a tear-like fluid (red).

Scientists Make Tiny Lab-Grown Tear Glands Cry

The tear-producing organoids researchers created could one day help relieve medical conditions that cause dry eyes

Leafhoppers are known for devastating crops like potatoes and grapes. But they can be a benign presence within a balanced jungle ecosystem.

The Wild World of a New Nature Preserve in Ecuador

Scientists have already begun discovering new species in the hotbed of biodiversity

Across the globe, culling has become the default strategy for the egg industry to eliminate the unwanted hatchlings.

Can New Technologies Eliminate the Grim Practice of Chick Culling?

As the U.S. egg industry continues to kill male chicks, scientists are racing to develop accurate and affordable ways to sex a chick before it hatches

The head and the body of the sea slug Elysia marginata, a day after the animal decapitated itself.

Sea Slug's Decapitated Head Crawls Around Before Regrowing a Body

Researchers think that lopping off its own noggin could help the critter rid itself of parasites

Jennifer Doudna, a Nobel Prize recipient for her work on the gene-editing tool CRISPR, and the "life sciences revolution" are the dual subjects of Walter Isaacson's latest biography.

How Scientist Jennifer Doudna Is Leading the Next Technological Revolution

A new book from Steve Jobs biographer Walter Isaacson offers an incisive portrait of the gene editing field that is changing modern medicine

Photos of the kitefin shark glowing in the dark.

Nearly Six-Foot-Long Glowing Shark Discovered in Deep Sea Off New Zealand

The kitefin shark is one of three species of glowing sharks described in a new paper

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.

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.

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

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.

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.

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.

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

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.

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.

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.

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.

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.

Ten Scientific Discoveries From 2020 That May Lead to New Inventions

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

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