Reproduction
Ancient Reptiles Kept Switching Between Laying Eggs And Giving Birth to Live Babies
Colder temperatures seem key to triggering the switch to live births
We Know Your Genes Can Influence Your Health, But Can They Also Influence Who You Love?
The same genes that dictate whether or not you can accept an organ transplant may guide your choice in a romantic partner
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
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
A Coral Reef's Mass Spawning
Understanding how corals reproduce is critical to their survival; Smithsonian's Nancy Knowlton investigates the annual event
The Curious Do's and Don'ts of Insect Dating Behavior
Bugs tap, dance and buzz to attract their mates—and some get eaten
Return of the Beasts
Elephant seals descend on California beaches for breeding season
Big Love
In a mating ritual, male humpback whales leap, splash and fight. But researchers ask: just what does a female whale want?
Soaring Hopes
The first two Asian vultures breed in captivity
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
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