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Ecology

Grasses and coastal scrub photographed at Salt Point State Park in Northern California. This park is one of several coastal areas researchers surveyed as part of a new study of disease-carrying ticks.

New Research

California Study Finds Lyme Disease-Carrying Ticks by the Beach

Researchers found as many ticks carrying the bacterium that causes Lyme disease in coastal areas as they did in woodlands

A mounted specimen of the type of tyrannosaur at the heart of new research that suggests these predators may have lived in groups. These skeletons are from a species named Teratophoneus curriei, and show an adult (left) and juvenile (right) at the Natural History Museum of Utah.

New Research

New Fossils Suggest Tyrannosaurs May Have Hunted in Packs

Researchers say the trove of four or five specimens found in southern Utah challenges the assumption that these predators were solitary

Smoke rises from a wildfire in the summer of 2019 near Talkeetna, Alaska.

New Research

New-Growth Alaskan Forests May Store More Carbon After Wildfires

Researchers find forests are regrowing with more deciduous trees, which are more resistant to burning and may eventually store 160 percent more carbon

Smoke lingers following fires in the Brazilian Amazon rainforest in August 2020.

New Research

Humans Have Altered 97 Percent of Earth’s Land Through Habitat and Species Loss

The study, which did not include Antarctica, also identified opportunities to restore up to 20 percent of land ecosystems

Blue pieces of microplastic viewed under a microscope alongside dust, minerals and charcoal collected from a park in Idaho.

New Research

Airborne Microplastics ‘Now Spiral Around the Globe’

Researchers find the tiny synthetic particles can stay aloft for nearly a week and travel large distances in the wind

The migration advances an average of 25 to 30 miles a day. A cyclist can cover similar distances.

What I Learned Biking the 10,000-Mile Migration Route of Monarch Butterflies

I set off to be the first person to cycle alongside the butterflies to raise awareness of their alarming decline

As many commercial operators and homeowners are shifting to LEDs, which tend to fall somewhere in the blue-white spectrum, the new results may have important implications beyond tropical rainforests.

Using Amber-Filtered Bulbs Instead of White Light Attracts Fewer Bugs

In a tropical rainforest study, 60 percent fewer insects visited traps illuminated in a golden glow. Researchers say the results may be widely applicable

A study of ten narwhal tusks reveals how the animals are responding to a swiftly changing Arctic.

New Research

Study of Narwhal Tusks Reveals a Swiftly Changing Arctic

Chemical analysis of ten tusks shows shifting diets and increasing levels of mercury as climate change warms the polar region

Grasshoppers swarm a street light a few blocks from the Las Vegas Strip on July 26, 2019.

New Research

Las Vegas Was Inundated by 46 Million Grasshoppers on a Single Night in 2019

A new study says the horde of insects was drawn to the Vegas Strip by its famously bright lights

Damages wrought by climate change and deforestation have transformed the Amazon rainforest. New research suggests the changes to this icon of the natural world caused by human activity may mean the Amazon now emits more greenhouse gases than it absorbs.

New Research

The Amazon Rainforest Now Emits More Greenhouse Gases Than It Absorbs

Climate change and deforestation have transformed the ecosystem into a net source of planet-warming gases instead of a carbon sink

A tiny, invasive zebra mussel found on a moss ball sold as aquarium decor in a pet store. Officials say moss balls containing the invasive species have been reported in pet stores in at least 21 states.

Officials Say Invasive Zebra Mussels Are Hiding in Aquarium Decor Sold Across U.S.

Pet stores in 21 states recall items after reports of the destructive bivalves lurking in moss balls

Satellite images comparing bull kelp canopy cover (gold shading) 2008 and 2019 off the coast of Mendocino and Sonoma Counties in Northern California.

New Research

Satellite Imagery Shows Northern California Kelp Forests Have Collapsed

Researchers say they’re not sure these iconic coastal ecosystems will be able to make a comeback anytime soon

The western monarch butterfly has declined by 99.9 percent since the 1980s, according to the latest population assessment.

New Research

Climate Change Lays Waste to Butterflies Across American West

Study documents declines across hundreds of species over recent decades, and finds years featuring warmer, drier autumns are particularly deadly

A male superb lyrebird

New Research

This Bird Mimics an Entire Flock to Woo Females

When mating, male lyrebirds reproduce a cacophony of calls usually reserved for when predator is nearby

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.

New Research

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

The study analyzes thousands of records to understand how many species of bees are spotted by scientists each year.

New Research

Thousands of Wild Bee Species Haven’t Been Seen Since 1990

Between 2006 and 2015, researchers worldwide observed 25 percent fewer bee species than they had before 1990

During fall migration, nearly 40 percent of Anna’s Hummingbirds (Calypte anna) migrate through California’s Central Valley

California’s Central Valley and the Colorado River Delta Are Epicenters for North America’s Migratory Birds

A database called eBird reveals as many as 65 million birds fly through these Western migration zones

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.

New Research

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

Three adult gray whales photographed via drone in 2017, 2018 and 2019 in Laguna San Ignacio off the coast of Mexico. The three shots show increasingly skinny whales, a bad sign for an animal that needs to make a 10,000-mile return trip to reach its feeding grounds.

New Research

Nearly 400 Gray Whales Have Died Off the West Coast Since 2019

Scientists say the die-off, which is entering its third year, is likely due to a scarcity of food in the animals’ cold water feeding grounds

Common murres live on rocky cliffs like those at Stora Karlsö, an island in the Baltic Sea.

New Research

Pandemic Reveals Ecological Benefits of Tourists in One Seaside Town

When people stayed home, white-tailed eagles converged on the island of Stora Karlsö in Sweden

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