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Reproduction

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Jane Chandler with crane

A Call to Save the Whooping Crane

Smithsonian researchers join an international effort to bring the five-foot-tall bird back from the brink of extinction
November 2011 | By Megan Gambino

Cheetah

What Animal is the Best Mother?

Cheetahs and gorillas have some of the strongest maternal instincts, according to a National Zoo biologist
May 04, 2011 | By Megan Gambino

Puffins on Eastern Egg Rock

A Puffin Comeback

Atlantic puffins had nearly vanished from the Maine coast until a young biologist defied conventional wisdom to lure them home
June 2010 | By Michelle Nijhuis

Brown Ranch

Breeding the Perfect Bull

A Texas cattleman used genetic science to breed his masterpiece – a near-perfect Red Angus bull. Then nature took its course
April 2010 | By Jeanne Marie Laskas

Nancy Knowlton coral spawning

A Coral Reef's Mass Spawning

Understanding how corals reproduce is critical to their survival; Smithsonian's Nancy Knowlton investigates the annual event
December 2009 | By Megan Gambino

Female Magellanic penguin incubating an egg

Penguin Dispatch 4: How to Study a Penguin Egg

Females guard their eggs closely, so scientists must tread carefully when temporarily extracting the eggs for research
June 04, 2009 | By Eric Wagner

Young Magellanic penguin chick on a data book

Penguin Dispatch 5: Picking the Cutest Newborn Chick

By late-November, many eggs are hatching and cute, tennis-ball sized grey chicks emerge, begging for food from their parents
June 04, 2009 | By Eric Wagner

Magellanic penguin colony near the end of breeding

Penguin Dispatch 6: The First Trip into the Ocean

Only two months into their lives, the chicks, with their now stronger flippers, take their first dive from the water’s edge
June 04, 2009 | By Eric Wagner

Clouded leopard cubs

National Zoo Celebrates Birth of Rare Clouded Leopards

Notoriously difficult to breed, two new clouded leopards are born at the National Zoo’s research facility
March 25, 2009 | By Cristina Santiestevan

Lightning bugs mating

The Curious Do's and Don'ts of Insect Dating Behavior

Bugs tap, dance and buzz to attract their mates—and some get eaten
February 12, 2009 | By Abigail Tucker

Newborn surrounded by family

Family of Man's Special Delivery

It took three generations to produce Wayne F. Miller's photograph of his newborn son
February 2009 | By Owen Edwards

Two male elephant seals fight. Protected by thick blubber, their chests can still get badly bloodied.

Return of the Beasts

Elephant seals descend on California beaches for breeding season
March 17, 2008 | By Andrew Curry

National Zoo researchers (with Ume) are experimenting with cheetah fertility.

Breeding Cheetahs

March 2008 | By Guy Gugliotta

Humpback Whales

Big Love

In a mating ritual, male humpback whales leap, splash and fight. But researchers ask: just what does a female whale want?
February 2008 | By Virginia Morell

Female cowbirds destroyed warbler nests when their parasitic eggs were removed.

Wiseguys with Wings

"Mafia" cowbirds muscle warblers into raising their young
March 01, 2007 | By Eric Jaffe

Two vulture chicks hatched in captivity, one of January 1, and a second four days later.

Soaring Hopes

The first two Asian vultures breed in captivity
February 01, 2007 | By Eric Jaffe

The product of a ten-year Sino-American conservation effort, the cub may help scientists reestablish the endangered giant pandas in the wild, where about 1,600 are believed to exist.

Learning from Tai Shan

The giant panda born at Washington, D.C.'s National Zoo has charmed animal lovers. Now he's teaching scientists more than they had expected
June 2006 | By Laura Tangley


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