Between 1919 and 1920, John B. Watson and Rosalie Rayner conducted a controversial experiment at Johns Hopkins, conditioning ...

One of us is a Republican from New York City. One is a Democrat from Las Vegas. The third is an actress and animal welfare advocate. We do not agree on everything, but we agree on this: It is time to ...

Add Yahoo as a preferred source to see more of our stories on Google. By now, most of you have seen little Punch, a 7-month-old macaque who stole the hearts of animal lovers around the world. But ...

Abandoned macaque Punch clings to a plushie, echoing Harry Harlow’s 1950s experiments showing primates prefer emotional comfort over food, shaping modern attachment theory. Baby Macaque A baby macaque ...

In the mid-20th century, psychologist Harry Harlow conducted some of the most disturbing animal experiments ever approved. Baby rhesus monkeys were separated from their mothers at birth and raised in ...

One of the biggest monkey research centers in the United States may transition into an animal sanctuary, in what would be an unprecedented move that will have repercussions for scientific research ...

Institutions that keep captive primates, like zoos or research laboratories, are responsible for the welfare of the animals in their care. This includes providing a stimulating environment, a healthy ...

A neural circuit that processes motivation and reward seems to act as a "brake" when faced with an unpleasant task, a study suggests. Elke Meitzel via Getty Images Many of us struggle to start a ...