Penguins do not react to people the way most wild animals do. When a human appears on an Antarctic shoreline, many penguins do not scatter or hide. They keep walking. Some pause a short distance away ...

For thousands of years, penguins have darted through the waters of the southern oceans, chasing fish and surfacing to nest on islands and landmasses sprinkled from the Galápagos to the Antarctic.

Opinion Writer Marie Kneeland A monkey’s meaning for mankind Do you still have stuffed animals? It’s OK, I do, too! When I ...

A new study suggests humans belong in an elite “league of monogamy,” ranking closer to beavers and meerkats than to chimpanzees. By comparing full and half siblings across species and human cultures, ...