A new study reveals life expectancy in many counties fell by more than 6 months from 2019 to 2020 due to the Covid-19 pandemic.

In Western Europe, Covid-19 Caused the Biggest Drop in Life Expectancy Since World War II

The study authors say the pandemic may have an even greater impact on life spans in less developed countries that were not included in the research

A green turtle surrounded by glassfish in Ningaloo Reef, Western Australia. Green sea turtles, which are classified as endangered, migrate long distances between feeding grounds and the beaches from where they hatched.

See Stunning Undersea Images That Showcase Our Blue Planet

From reef sharks to bioluminescent squid, the Ocean Photography Award highlights the wonders and perils of life in the sea

Scientists analyzed millions of eBird observations to see how bird abundance changed during the early months of the pandemic.

Birds Flocked to Pandemic-Silenced Cities

From ruby-throated hummingbirds to bald eagles, a new study finds our feathered friends thrived in quieter urban habitats

Severe drought has contributed to the state’s historic wildfire season and threatened some of its most famous trees.

California Firefighters Race to Protect Giant Sequoia Trees

Officials say the historically significant trees were thankfully unscathed by recent blazes

Children ages 5 to 11 could be eligible to get the vaccination as early as October, pending FDA authorization.

Pfizer Says Covid-19 Vaccine Safe and Effective for Kids Ages 5 to 11

FDA authorization could come as early as October

An advisory panel says most fully vaccinated Americans are still well-protected from Covid-19.

FDA Advisory Panel Recommends Covid-19 Booster for Older and High-Risk Americans

The committee says most Americans don’t need a booster shot just yet

Instead of giving the same mRNA shot a third time, the group suggests boosters could be tweaked to better handle new variants as the emerge, similar the annual flu shot.

Some Experts Say Most Vaccinated Americans Don't Need Booster Shot Yet

A new analysis concludes vaccines still offer substantial protection against Covid-19

Though the fossil shared a resemblance to others found in the region, it had much longer legs. The team decided to name the new species Kairuku waewaeroa, which means “long-legged” in the Maori language.

New Zealand Kids Discovered This Fossil of New Giant Penguin Species on a Field Trip

Paleontologists say the bird would have been roughly the size of a ten-year-old child

A diver swims over a bleached section of the Great Barrier Reef near Heron Island.

The Planet Has Lost Half of Its Coral Reefs Since 1950

A new study finds dramatic declines in coral reef cover, biodiversity and fish abundance

Red forest ant (Formica rufa). This image was awarded honorable mention in this year's Nikon Small World contest.

These Images Reveal Nature in Microscopic Detail

Nikon’s Small World Photography Contest offers at up-close look at slime molds, insect wings, neurons and more

A mammoth replica on display at the Royal British Columbia Museum in Victoria, Canada.

These Scientists Plan to Fully Resurrect a Woolly Mammoth Within the Decade

A company has raised $15 million to bring the species back from extinction using gene editing technology

The microCOVID project was started by a group of friends and housemates who wanted to be more equitable about safety precautions.

This Calculator Estimates Your Risk of Getting Covid-19

The online tool draws on recent data to approximate your chances of contracting the virus in different scenarios

Heavy metal-fortified mandibles help leafcutter ants save energy and muscle mass.

Heavy Metals Give Ants a Powerful Bite

A combination of metal atoms and natural proteins is the secret behind the super-strong jaws, claws and stingers of some tiny animals

Scientists recreated the famous beef, which is prized for its fat marbling, or sashi.

Scientists Create First 3-D Printed Wagyu Beef

The cultured cut matches the texture and marbling of the famous Japanese meat

Around 20 percent of female white-necked jacobins have evolved to share the vibrant plumage characteristic of males.

Female Hummingbirds Masquerade as Males to Avoid Harassment

One-fifth of female white-necked jacobins sport flashy male-like plumage, which may help them access more food

Female octopuses were far more likely than males to 'throw' objects at others.

Female Octopuses Throw Things at Male Harassers

Scientists observed common Sydney octopuses launching shells and silt at particularly annoying individuals

Hurricane Ida hit Louisiana's southeastern coast at 11:55 am eastern on Sunday.

Hurricane Ida Slams Louisiana Coast on the 16th Anniversary of Katrina

The Category 4 hurricane made landfall in southeastern Louisiana midday Sunday, causing extensive flooding and power outages

Asian paper wasp nests take on a new verdant glow under ultraviolet light.

Wasp Nest Glows Green Under UV Light

Silk fibers give the nest its radiant a neon hue

Early trials show a second dose of the J&J Covid-19 vaccine after six months later provides a promising antibody response.

Johnson & Johnson Says Extra Shot Gives Promising Immune Boost

Those who got the one-shot Covid-19 vaccine could benefit from a booster after eight months, according to the company

A town along the Ahr river was damaged following intense flooding.

Europe's Extreme Floods Are 'Up to Nine Times More Likely' Because of Climate Change

July's heavy rains were made more severe by human-caused warming

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