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With 86% Drop, California’s Monarch Butterfly Population Hits Record Low

With 86% Drop, California’s Monarch Butterfly Population Hits Record Low

The population of western monarch butterflies in California dropped to a record low last year, according to a nonprofit conservation group.

How Cockroaches Crash Into Walls and Keep Going

How Cockroaches Crash Into Walls and Keep Going

Scientists found that the tough exteriors of cockroaches help them keep moving without losing much momentum when they bump into things.

NASA’s New Horizons Takes Photos of Ultima Thule, 4 Billion Miles Away

NASA’s New Horizons Takes Photos of Ultima Thule, 4 Billion Miles Away

S. Alan Stern, center, New Horizons’ principal investigator, surrounded by children at Johns Hopkins University Applied Physics Laboratory in Laurel, Md., on Tuesday.

Archaeologists in China Discover the Oldest Stone Tools Outside Africa

Archaeologists in China Discover the Oldest Stone Tools Outside Africa

One of the 2.1 million-year-old artifacts, right, recovered from a gully in western China, left, suggest that hominins may have left Africa far earlier than previously believed.

When a Pregnant Pipefish Dad Spots an Alluring Female, Things Get Weird

When a Pregnant Pipefish Dad Spots an Alluring Female, Things Get Weird

A robust ghost pipefish in waters off Indonesia. With some species of pipefish, fathers are susceptible to what scientists call the Bruce effect.

Bodies Remodeled for a Life at Sea

Bodies Remodeled for a Life at Sea

A Bajau diver spearfishes in Sulawesi. A study suggests these sea-dwelling people have evolved adaptations to deep diving.

Every 202,500 Years, Earth Wanders in a New Direction

Every 202,500 Years, Earth Wanders in a New Direction

Earth’s gravitational interactions with other planets — particularly Venus, because it is very near — affect the shape of its orbit.

Did Juul Lure Teenagers and Get ‘Customers for Life’?

Did Juul Lure Teenagers and Get ‘Customers for Life’?

Juul is under federal investigation for marketing its discreet, flash-drive-resembling e-cigarette product to youth.

NASA Budgets for a Trip to the Moon, but Not While Trump Is President

NASA Budgets for a Trip to the Moon, but Not While Trump Is President

Vice President Mike Pence at the National Space Council’s first meeting in Chantilly, Va., in October.

Unlocking Secrets of Sour Flavors With Something Found in Your Ears

Unlocking Secrets of Sour Flavors With Something Found in Your Ears

A protein found in the inner ear also exists in cells that help us perceive sour tastes, according to a new study.

James Watson Had a Chance to Salvage His Reputation on Race. He Made Things Worse.

James Watson Had a Chance to Salvage His Reputation on Race. He Made Things Worse.

“Decoding Watson,” a new film about Dr. James D. Watson, explores the gulf between his scientific brilliance and his views on race.

Women Making Science Videos on YouTube Face Hostile Comments

Women Making Science Videos on YouTube Face Hostile Comments

A screen grab of Emily Graslie's channel, The Brain Scoop, from a recent episode about skunk dissection.

You Are Shaped by the Genes You Inherit. And Maybe by Those You Don’t.

You Are Shaped by the Genes You Inherit. And Maybe by Those You Don’t.

Graduation at City College in New York in 2016. A study in Iceland focusing on education suggests that parental genes may help determine how long children stay in school.

Last March of the ‘Wooden Elephants’: Africa’s Ancient Baobabs Are Dying

Last March of the ‘Wooden Elephants’: Africa’s Ancient Baobabs Are Dying

A baobab tree at Epupa Falls in Namibia. Researchers suspect that Africa's "wooden elephants" are succumbing to prolonged droughts and increasing temperatures, which are parching the trees, leaving them unable to support the weight of their massive trunks.

All by Itself, the Humble Sweet Potato Colonized the World

All by Itself, the Humble Sweet Potato Colonized the World

The distribution of the sweet potato plant has baffled scientists. How could the plant arise from a wild ancestor in the Americas and wind up on islands across the Pacific?

Climate Change Is Altering Lakes and Streams, Study Suggests

Climate Change Is Altering Lakes and Streams, Study Suggests

The Sorpe reservoir in northwest Germany, one of four freshwater reservoirs observed in a recent study that found that carbon dioxide absorbed in lakes, rivers and streams can affect entire ecosystems.


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