Are double-crested cormorants overrunning their niche—or recovering from centuries of suppression?
Contagious laughter, yawns, and moods offer insight into empathy’s origins.
For thirsty sea snakes, the ocean can be a desert.
Tigers and other “exotics” have become hefty commodities in the U.S.
Shared child care may be the secret of human evolutionary success.
A rediscovered painting celebrates Charles Darwin’s view of life.
Freshwater habitats around the world are becoming less and less hospitable to wildlife
During the past 40 million years, three great lineages arose in the dog family.
Most of the matter in the universe is neither bound up in stars or planets nor dispersed in clouds of "ordinary" particles. But what is it made of?
Adaptations to deepwater living make the fishes of the deep sea particularly vulnerable to overfishing.
The importance of food, jealousy, and paternal care in the evolution of owl monkey monogamy
La importancia del alimento, los celos y el cuidado paternal en la evolución de la monogamia en el mono mirikiná
Comparing the rewards of small-scale farming to those recounted by Thoreau
Conspicuous armaments are good visual proxies for fighting ability.