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Orangutan male success not due to dominance alone, study finds

In primates, the biggest, bossiest males usually get to father the most offspring; and for a long time it was thought that this rule applied to orangutans too. Male orangutans openly compete; and it's the older males with ...

Venezuela zoo welcomes three white lion cubs

A Venezuelan zoo this week welcomed the country's first three white lion cubs born in captivity, a boost for the genetically rare animal whose wild population numbers only about a dozen living in their native South Africa.

Does spaceflight increase men's risk of erectile dysfunction?

During missions into space, astronauts are exposed to high levels of galactic cosmic radiation and weightlessness. Simulation experiments in male rats indicated that these aspects of spaceflight can negatively affect vascular ...

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