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Farmland Birds in France Are in Steep Decline

Farmland Birds in France Are in Steep Decline

Over the past 17 years, the numbers of some bird species in French farming regions have dropped considerably. Meadow pipits have declined by 68 percent.

Some Songbirds Have Brains Specially Designed to Find Mates for Life

Some Songbirds Have Brains Specially Designed to Find Mates for Life

An assortment of zebra finches studied by Sarah Woolley, a neuroscientist at Columbia University. Dr. Woolley found that finches were expert at learning the songs of their fathers for later in life, when it comes time to find a mate.

Newly Discovered ‘Limb Pit’ Reveals Civil War Surgeons’ Bitter Choices

Newly Discovered ‘Limb Pit’ Reveals Civil War Surgeons’ Bitter Choices

A field technician excavating the remains of an amputated limb at Manassas National Battlefield Park in October 2015. The discovery of two nearly complete sets of soldiers’ remains, 11 partial limbs and other artifacts appeared to date to the Second Battle of Bull Run, which ended Aug. 30, 1862.

In Footprints on Scotland’s Isle of Skye, Signs of a Dinosaur Playground

In Footprints on Scotland’s Isle of Skye, Signs of a Dinosaur Playground

A sauropod footprint found in Scotland was among several that included tracks left by smaller, two-legged meat-eaters. Their presence together upends a theory that the larger plant-eaters waded into shallow, muddy waters to evade predators.

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?

Arctic Foxes on a Swedish Mountain Turned ‘Blue.’ It Was a Good Thing.

Arctic Foxes on a Swedish Mountain Turned ‘Blue.’ It Was a Good Thing.

An arctic fox near Helagsfjället mountain in Sweden. Foxes in the area were severely inbred until three males from a Norwegian captive breeding population turned up.

The ‘Zombie Gene’ That May Protect Elephants From Cancer

The ‘Zombie Gene’ That May Protect Elephants From Cancer

Elephants, like their forebears mastodons and mammoths, carry a unique gene whose proteins kill off potentially cancerous cells.

F.D.A. to Expand Medication-Assisted Therapy for Opioid Addicts

F.D.A. to Expand Medication-Assisted Therapy for Opioid Addicts

Alex M. Azar II, the secretary of health and human services, speaking to the National Governors Association on Saturday in Washington. The Trump administration wants to expand access to so-called medication-assisted treatment for combating opioid addiction.

A Chinese Space Station Will Fall to Earth Soon. You’ll Probably Be Fine.

A Chinese Space Station Will Fall to Earth Soon. You’ll Probably Be Fine.

A spokeswoman for China’s manned space program presented a replica of the Tiangong 1 space station (left half of the model) in 2012 with a manned spacecraft, Shenzhou 9, attached.

NASA Names Astronauts for Boeing and SpaceX Flights to International Space Station

NASA Names Astronauts for Boeing and SpaceX Flights to International Space Station

The astronauts named by NASA to fly on commercial spacecraft made by Boeing and SpaceX to and from the International Space Station: From left, Sunita Williams, Cmdr. Josh Cassada, Eric Boe, Lt. Col. Nicole Mann, Christopher Ferguson, Douglas Hurley, Col. Bob Behnken, Col. Mike Hopkins and Cmdr. Victor Glover.

Trillions Upon Trillions of Viruses Fall From the Sky Each Day

Trillions Upon Trillions of Viruses Fall From the Sky Each Day

Viruses attached to a fragment of a bacterial cell wall. “Viruses modulate the function and evolution of all living things,” scientists wrote last year. “But to what extent remains a mystery.”

Wild Tomatoes Repel Whiteflies, Study Finds

Wild Tomatoes Repel Whiteflies, Study Finds

Cherry tomatoes. Researchers found that domesticated tomatoes like these were less resistant to whiteflies than currant tomatoes, a wild species.

The Baby’s Hand Was Mummified. Why Wasn’t the Rest of Its Body?

The Baby’s Hand Was Mummified. Why Wasn’t the Rest of Its Body?

The skeleton of a child found in Hungary was partially mummified by copper from a coin placed in its hand.

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.

Laser

Laser

The United States Navy's laser weapon. It can be used to ablate, ignite or otherwise damage an air or sea target.


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