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Baleen Whales Intermingled as They Evolved, and Share DNA With Distant Cousins

Baleen Whales Intermingled as They Evolved, and Share DNA With Distant Cousins

Fin whales differ in size, color and body shape from their cousins, the larger blue whale, but scientists decoding the genome of several baleen species say there was intermingling during the course of their evolution.

Astronomers’ Dark Energy Hopes Fade to Gray

Astronomers’ Dark Energy Hopes Fade to Gray

A remnant from a Type 1A supernova observed in the Milky Way, one of the cosmic markers of how fast the universe is expanding. Observing exploding stars helped astronomers first discover the existence of dark energy nearly 20 years ago.

The Known: Cancer Is Really, Really Old. The Unknown: How Common It Was.

The Known: Cancer Is Really, Really Old. The Unknown: How Common It Was.

Evidence of a cancerous tumor was found on a bone fossil dating back 1.7 million years.

Scientists Fear for Colombia’s ‘Melted Rainbow’

Scientists Fear for Colombia’s ‘Melted Rainbow’

The Caño Cristales in Colombia, home to Macarenia clavigera, which turns the river bright colors in the rainy season. It has become a tourist attraction, but oil reserves nearby have pitted the government against a petroleum company.

Starfish See Pretty Well in the Deep Ocean. By the Way, Starfish Have Eyes.

Starfish See Pretty Well in the Deep Ocean. By the Way, Starfish Have Eyes.

The Tremaster mirabilis starfish, one of several species of sea star living in deep waters off Greenland’s coast that have surprisingly complex eyes.

Ice on the Surface of the Moon? Almost Certainly, New Research Shows

Ice on the Surface of the Moon? Almost Certainly, New Research Shows

New research suggests there is ice water up there, in craters at the poles where it’s dark and cold.

Study Links Sleeplessness and False Confessions

Study Links Sleeplessness and False Confessions

An interrogation room in a police precinct in Harlem. Close to 20 percent of interrogations occur during normal sleep hours, midnight to 8 a.m., a new study notes.

These Whales Are Serenaders of the Seas. It’s Quite a Racket.

These Whales Are Serenaders of the Seas. It’s Quite a Racket.

A juvenile male humpback whale in waters off Sri Lanka. The males may be singing certain tunes to attract mates, although scientists listening to the songs suspect there may also be other reasons for the music shared among these giants, even when they are miles and miles apart.

Borneo Lost More Than 100,000 Orangutans From 1999 to 2015

Borneo Lost More Than 100,000 Orangutans From 1999 to 2015

An orangutan in a sanctuary awaiting release on the Indonesian part of the island of Borneo. New research has found that 50 years of conservation efforts have failed to stem the decline of orangutans on the island.

Hints of Human Evolution in Chimpanzees That Endure a Savanna’s Heat

Hints of Human Evolution in Chimpanzees That Endure a Savanna’s Heat

A male chimpanzee drinking at a waterhole in Fongoli, a Senegalese savanna. Temperatures at Fongoli can reach 110 degrees Fahrenheit or more.

Wild and Craggy, Just Like Thoreau

Wild and Craggy, Just Like Thoreau

The view from the summit of "Mount Thoreau" looking south toward the Palisades and the Northern boundary of Kings Canyon National Park.

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.

Review: ‘Pit Bull’ Traces Path From Fighter to Pet to Demon

Review: ‘Pit Bull’ Traces Path From Fighter to Pet to Demon

Pit Bull: The Battle Over an American Icon by Bronwen Dickey
Knopf, $26.95
330 pages

Tiny Brains of Extinct Human Relative Had Complex Features

Tiny Brains of Extinct Human Relative Had Complex Features

Researchers say that the skull of Homo naledi, a hominin that lived 236,000 to 335,000 years ago, contained a brain the size of an orange that had a similar shape and structure with that of modern humans.

In Africa, Geneticists Are Hunting Poachers

In Africa, Geneticists Are Hunting Poachers

Workers at Kruger National Park in South Africa moving a rhino from a high-risk poaching area in 2014. Researchers in South Africa are turning to genetic fingerprinting to track down poachers for prosecution.


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