Ecology

Adult mayflies following an emergence on Lake Erie.

Massive Mayfly Swarms Are Getting Smaller—and That's Bad News for Aquatic Ecosystems

The drop is a sign that the insects’ populations are threatened, which could negatively affect the animals that feed on them

Coyotes are about to enter South America, a move that could soon make the species, native to North America, one of the most widespread carnivores in the western hemisphere.

Coyotes Poised to Infiltrate South America

The crab-eating fox and the coyote may soon swap territories, initiating the first American cross-continental exchange in more than three million years

Photosynthetic bacteria in the concrete make it bright green until it dries and turns brown.

Scientists Design Bacteria-Based Living Concrete

Its designers hope that it could help with construction in deserts or even on Mars

Brush-tailed rock-wallabies are endangered in New South Wales.

Australia’s National Park Staff Is Now Air-Dropping Food to Wallabies

Wallabies often survive the bushfires, but their natural food sources do not

Even for grasshoppers, being upside-down can be a high (blood) pressure situation.

Like Humans, Grasshoppers Grapple With Gravity's Effects on Blood Pressure

After putting the insects into a linear accelerator, researchers got some surprisingly weighty results

Española tortoises are reared for five years before being released on the Galápagos' Española Island.

Diego, the 100-Year-Old Tortoise Who Fathered 900 Babies, Returns to the Wild

The breeding program brought the Española tortoise population back from the brink

After seeing their numbers slashed due to overhunting in the 20th century, North Atlantic right whales still face plenty of threats, including ship strikes, habitat degradation and pollution. A mother and her calf are seen in this aerial image from 2005.

Can Scientists Protect North Atlantic Right Whales by Counting Them From Space?

A new collaboration between the New England Aquarium and the engineering firm Draper seeks to use satellite sonar and radar data to create a global watch

Iridescent spots found on the dot-underwing moth suggest that even nocturnal insects might rely on visual cues

How These Nocturnal Moths Sparkle at Night

The nocturnal insect might flash its reflective spots at a potential mate

The bitty ant on top of the big one is a newly-described species of "rodeo ant," a queen that rides atop her perch by biting its waist.

Texan 'Rodeo Ants' Ride on the Backs of Bigger Ants

The strategy helps the parasitic riders steal food and childcare from their hosts

Bioluminescent "sea fireflies," a species of ostracod crustacean, covering the rocks on the coast of Okayama, Japan.

How Studying Bioluminescent Creatures Is Transforming Medical Science

The natural light of insects and sea creatures can help doctors illuminate H.I.V. and even kill cancer cells

The tooth-filled mouth of a lamprey. These bloodsucking fish have managed to survive for hundreds of millions of years.

Why the World Needs Bloodsucking Creatures

The ecological benefits of animals like leeches, ticks and vampire bats are the focus of a new exhibition at the Royal Ontario Museum

Thanks to the ubiquity of electric light, less and less of the planet falls genuinely into darkness any more.

How Cities and Lights Drive the Evolution of Life

Urbanization and the spread of artificial light are transforming all of earth's species, bringing about a host of unintended consequences

Yellowstone Bison Engineer an Endless Spring to Suit Their Grazing Needs

The cycle of grazing and fertilizing prolongs spring-like vegetation in grasslands and makes green-up more intense in following years

City noise can throw off a bat's ability to use echolocation.

Noise Pollution Impacts a Wide Range of Species, Study Finds

From tiny insects to large marine mammals, animals are affected by noise in ways that might threaten their survival

A humpback whale basks in sunlight at the ocean's surface in Atlantic Ocean off the coast of the Dominican Republic.

South Atlantic Humpback Whales Have Rebounded From the Brink of Extinction

A new study estimates that the group’s population has grown from 440 individuals in 1958 to nearly 25,000 today

Pack rats near their nest, or midden, in the City of Rocks National Reserve in Idaho.

From Ancient Seeds to Scraps of Clothing, Rats' Nests Are Full of Treasures

Material gathered and preserved in a pack rat's midden helps researchers open new windows on the past

Understanding plankton is essential to studying how ocean life is sustained.

This Device Has Been Measuring the Ocean's Plankton Since the 1930s

Largely unchanged since it was invented, the Continuous Plankton Recorder collects plankton as it is towed behind a ship

An aye-aye lemur.

Extra Thumb Discovered on Aye-Aye Lemurs, Giving These Primates Six Fingers

Used for gripping limbs, a “pseudo-thumb” makes the hands of these bizarre primates even creepier

By collecting images and GPS data from citizen divers, scientists can get a better sense of the health of the entire Great Barrier Reef.

Massive Citizen Science Effort Seeks to Survey the Entire Great Barrier Reef

Only about 1,000 of 3,000 individual reefs have been documented, but the Great Reef Census hopes to fill in the gaps

The 'blob' now lives in a terrarium where it loves warm temperatures and humidity.

Paris Zoo Unveils Bizarre, Brainless ‘Blob’ Capable of Learning—and Eating Oatmeal

Physarum polycephalum is known as a slime mold, but it is not in fact a fungus. It’s also not a plant. Or an animal.

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