How does a herd decide which direction to head in? Researchers put GPS collars on a gathering of goats to find out. Here's what they learned — and how it might apply to humans.

The ASPCA's Behavioral Rehabilitation Center works with severely fearful dogs rescued from puppy mills and hoarders. The shelter has an 87% success rate in rehabilitating undersocialized dogs.

"Relationships with animals are simple," notes one researcher. In a year when life feels fraught, pets have been healers, helping human companions get exercise, quell anxiety and make new friends.

Experiments in people have long shown that the presence of indifferent bystanders hurts the chances that someone will help a stranger in an emergency. Rats, it turns out, behave the same way.

For years, we’ve seen gorillas come to life on the screen, in everything from “Planet of the Apes,” to “Congo,” and “The Jungle Book.” However, these...