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Byline: Natalie Angier The two lappet-faced vultures had been together for just a few months, yet the massive birds, with their watchful, featherless gargoyle faces and their dark mottled body [...]

The two lappet-faced vultures had been together for just a few months, yet the massive birds, with their watchful, featherless gargoyle faces and their dark mottled body plumage so plush [...]

Byline: Natalie Angier Five hundred million years ago, soft-bodied sea animals used phosphate to build elaborate, protective armor. Then their resource dried up, and evolution moved on. In the Cambrian [...]

Five hundred million years ago, soft-bodied sea animals used phosphate to build elaborate, protective armor. Then their resource dried up, and evolution moved on. In the Cambrian Period, 500 million [...]

Byline: Natalie Angier Three sisters braved lions, crocodiles, poachers, raging rivers and other dangers on a 1,300-mile transnational effort to forge a new dynasty. The three sisters knew they had [...]

Three sisters braved lions, crocodiles, poachers, raging rivers and other dangers on a 1,300-mile transnational effort to forge a new dynasty. The three sisters knew they had to leave home. [...]

He demonstrated that differences in DNA between groups of people were far smaller than originally believed. He was also a noted opponent of aspects of sociobiology. Richard C. Lewontin, widely [...]

Joyce Poole was 6 years old and living in Malawi when her family drove north to see the wild African elephants of what is now Kenya's Amboseli National Park. On [...]

Byline: Natalie Angier Culture, once considered exclusive to humans, turns out to be widespread in nature. Julia, her friends and family agreed, had style. When, out of the blue, the [...]

Culture, once considered exclusive to humans, turns out to be widespread in nature. Julia, her friends and family agreed, had style. When, out of the blue, the 18-year-old chimpanzee began [...]

Byline: Natalie Angier Gorongosa National Park, steadily recovering from the ravages of civil war, recently added to its list of resident predators. Late in November, after three grinding years of [...]

Byline: Natalie Angier GAITHERSBURG, Md. - On a laboratory bench at the National Institute of Standards and Technology was a square tray with two black disks inside, each about the [...]

GAITHERSBURG, Md. -- On a laboratory bench at the National Institute of Standards and Technology was a square tray with two black disks inside, each about the width of the [...]

Byline: Natalie Angier Wild dogs have returned to the famed Gorongosa National Park in Mozambique. The first puppy litters were not far behind. Last summer, not long after releasing a [...]

Last summer, not long after releasing a pioneer pack of 14 African wild dogs into Mozambique's Gorongosa National Park as part of an ambitious wildlife restoration effort, Paola Bouley went [...]

PASADENA, Calif. -- The engineer's mantra, said Frances Arnold, a professor of chemical engineering at the California Institute of Technology, is: ''Keep it simple, stupid.'' But Dr. Arnold, who last [...]

Most female flies take a low-rent approach to parenthood, depositing scores of seed-sized eggs in the trash or on pet scat to hatch, leaving the larvae to fend for themselves.Not [...]

The theory of plate tectonics is one of the great scientific advances of our age, right up there with Darwin's theory of evolution and Einstein's theory of relativity.The idea that [...]

Byline: NATALIE ANGIER GORONGOSA NATIONAL PARK, Mozambique -- We are flying in a Bat Hawk aircraft -- which may be named for a raptor that preys on bats but looks [...]

GORONGOSA NATIONAL PARK, Mozambique -- We are flying in a Bat Hawk aircraft -- which may be named for a raptor that preys on bats but looks more like a [...]

Byline: NATALIE ANGIER GORONGOSA NATIONAL PARK, MOZAMBIQUE -- The 14 African wild dogs were ravenous, dashing back and forth along the fence of their open-air enclosure, or boma, bouncing madly [...]

GORONGOSA NATIONAL PARK, MOZAMBIQUE -- The 14 African wild dogs were ravenous, dashing back and forth along the fence of their open-air enclosure, or boma, bouncing madly on their pogo-stick [...]

In advance of Father's Day, let's take a moment to sort out the differences and similarities between ''Dad jeans'' and ''Dad genes.'' Dad jeans are articles of sex-specific leisure clothing, [...]

For ''simple'' single-celled organisms, microbes often can seem as civic-minded as an Amish barn-raising crew. They cooperate to mince unwieldy complex carbohydrates into bite-size pieces for all to enjoy. They [...]

Byline: NATALIE ANGIER For 'simple' single-celled organisms, microbes often can seem as civic-minded as an Amish barn-raising crew. They cooperate to mince unwieldy complex carbohydrates into bite-size pieces for all [...]

A friend will help you move, goes an old saying, while a good friend will help you move a body. And why not? Moral qualms aside, that good friend would [...]