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Animal behavior

Dogs and people with Williams syndrome may both owe their sociable personalities to changes in the same genes.

Nala Rogers, Staff Writer

Analysis of dinosaur fossils showed that some parents warmed their eggs with body heat.

Joel Shurkin, Contributor

Researchers examine 30-million-year-old whale fossils to uncover how these marine mammals ate before baleen.

Olivia Trani, Contributor

White-tailed deer mothers deposit their babies with female mule deer, which then defend the fawns from predators.

Nala Rogers, Staff Writer

Tube-lipped wrasses overcome coral's defenses with bizarre puckered lips.

Nala Rogers, Contributor

Study shows how collective cooperation can develop in systems even when benefits are not obvious to individuals.

Yuen Yiu, Staff Writer

A one-legged stance doesn't need much effort.

Marcus Woo, Contributor

Scientists find that soybeans attract fewer flocking birds than wheat or corn.

Teresa L. Carey, Contributor

Birds reach amazing heights without flapping their wings.

Karin Heineman, Executive Producer

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