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Science / Wildlife

Many giant animals roamed the Earth after non-avian dinosaurs went extinct.

After Dinosaurs Went Extinct, These Ten Giant Creatures Roamed the Earth

Though we often think of the “terrible lizards” as behemoths, many later reptiles and mammals also grew to massive sizes

Ravens prey on juvenile desert tortoises.

For Young Threatened Desert Tortoises, These Technologies Have Arrived to Help

Biologists are deploying 3D-printed replicas of hatchlings, lasers and drones to curb predation

The critically endangered ‘akē‘akē (the Hawaiian name for the band-rumped storm petrel) is one of the species that could benefit from rat-free habitat on Lehua Island, Hawai‘i.

This Tiny Hawaiian Island Is Free of Invasive Rats

Now scientists are trying to coax back lost seabird colonies

The fossil of Icaronycteris gunnelli

Paleontologists Discover 52-Million-Year-Old Bat

The fossil represents the earliest-known species of the flying mammal

A monk seal in southern Greece. Females tended to give birth on beaches before human hostility drove them into hiding.

Planet Positive

The Mediterranean Monk Seal Is Making a Comeback

The endangered sea creature, known for its reclusive nature, has re-emerged out of the shadows

Researchers hike near a creek that formed after a glacier retreated.

As Glaciers Retreat, New Streams Offer Homes for Salmon

After the waterways form, insects move in, alders and willows spring up, and spawning fish arrive in thousands

An artist’s reconstruction of Rhinesuchus, a rhinesuchid temnospondyl

Paleontologists Uncover Fossil Impressions of Giant, Alligator-Like Amphibians

The find reveals how the creatures swam and relaxed in prehistoric waterways

Many of the reptiles that thrived during the Triassic were crocodile relatives that dinosaurs would later mimic through evolutionary happenstance, such as Postosuchus (back) and Desmatosuchus (front).

Dinosaurs Were Evolutionary Copycats of These Long-Lost Look-Alikes

Before T. rex and ankylosaurus ruled the Earth, a host of similar Triassic reptiles reigned

Wandering albatross pair in courtship in South Georgia. Researchers have found some birds have bolder personalities than others.

Animal Personalities Can Trip Up Science

Individual behavior patterns may skew studies, but researchers have a solution to this problem

The adaptive lighting cooked up by Camilla Rathsach and Mette Hvass would automatically adjust to the availability of moonlight, tweaking this church’s lighting automatically to balance visibility and darkness. This mock-up shows how the church would be lit under a full moon.

This Danish Church Is a Beacon for How to Protect Wildlife From Artificial Light

A proposed design looks to automatically adjust the exterior lighting on the Anholt Island building to the moonlight

A cockatoo uses a sharp stick to poke through a membrane before using a scoop to fish out the cashew inside the box.

Like Humans and Chimps, Cockatoos Can Use a Set of Tools to Get a Meal

In lab experiments, the brainy birds carried a stick and scooped with them to get at cashews kept in a box

Industrialization changed Italy’s Bagnoli Bay. Analyzing the DNA that was trapped in sediment offers a record of what was lost—and a clue as to how to get it back.

DNA Buried in Sediment Helps Scientists Picture Past Ecosystems

Examining the evidence offers a way to look back at now damaged environments

A male (silver) and female (brown) common European adder meet prior to mating. Scientists are just beginning to understand female sexual anatomy in snakes.

Why Did Scientists Wait So Long to Study the Snake Clitoris?

The delay is representative of a major problem in biology: Female and intersex animals are understudied compared with their male counterparts

The strategy an animal uses to track a scent depends upon a number of factors, including the animal’s body shape and the amount of turbulence in the odor plume.

Scientists Are Trying to Figure Out How Animals Follow a Scent to Its Source

Uncovering the varied strategies that animals employ could help engineers develop robots that accomplish similar tasks

Many animals like corals release eggs and sperm into the water on just the right nights of the month.

How Lunar Cycles Guide the Spawning of Sea Creatures

Researchers are starting to understand the biological rhythms that sync worms and corals to phases of the moon

A just-hatched chick stands next to its egg.

Why Newborn Chicks Love Objects That Defy Gravity

A clever new study shows the cute critters will often scuttle toward a video of a rising ball

After nearly 40 years, desert lions are once again hunting marine prey along Namibia’s Skeleton Coast, where scientists believed the knowledge had been lost.

In Namibia, Lions Are King of the Beach

As the big cats return to hunting fur seals on the Skeleton Coast, a new project tries to keep people out of the way

One standout feature of the renovated Bird House at the Smithsonian's National Zoo and Conservation Biology Institute is the chance for close-up, interactive experiences (above: a cedar waxwing).

The Wonderful World of Birds

Experience the Wonder of Migration at the National Zoo’s New Bird House

Following a six-year renovation, the revamped exhibition will open March 13 with three indoor aviaries

Purple martins perch on a branch in the Brazilian Amazon.

The Wonderful World of Birds

Why Are Purple Martins Declining in the United States?

Mercury contamination in their Amazonian wintering grounds may play a role

The lizards likely reached the islands by hitching a ride on logs, vegetation or other debris, and diverged from their terrestrial cousins some 4.5 million years ago.

Behold: The Galápagos’ Marine Iguana

This quirky icon of evolution faces a rocky future

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