A new study comparing wild and zoo-housed Sumatran orangutans reveals that life in a zoo significantly alters how orangutans interact with their environment. Researchers analyzed over 12,000 instances ...

America's reliance on government debt has reached dangerous levels, with $2 of new debt needed to generate just $1 of GDP ...

Tattoos can be silly, sentimental, or meaningful, and they always convey something about the person to others. In the same ...

A groundbreaking study reveals that orangutans living in zoos engage in more frequent and complex object exploration than ...