When I get home at the end of the day, I am greeted by 35 pounds of bouncing fur and three tails wagging a mile a minute. After lots of rubs and kisses, my three Havanese dogs settle down for a ...

Humans’ closest primate relatives lost their tails about 25 million years ago, but exactly how has remained a mystery. A breakthrough in genetic research may finally offer answers.

WASHINGTON — Our very ancient animal ancestors had tails. Why don’t we? Somewhere around 20 million or 25 million years ago, when apes diverged from monkeys, our branch of the tree of life ...

Many people believe that dogs wag their tails when they are happy. But, according to a new study, the behavior is actually much more nuanced than that.

The tails are associated with spina bifida, a dangerous condition in which the canals of the spinal cord don’t entire close before birth, but they are often present without the disorder.

Small reptiles like lizards and geckos are known for their extraordinary ability to regrow their tails, a potentially lifesaving skill in the wild. But it turns out these reptiles are not the only ...

The tails of most dogs, for example, hang down near their hocks, or heels. But pugs have tails that curl upward, and greyhounds have tails that rest slightly between their legs.

Meanwhile, short tails could make it hard to sit in a chair without some modifications. "Clearly, if we had tails, we would need to redesign carseats and bathing suits," Marks said. RELATED MYSTERIES ...

For this piece on why dogs chase their tails, Sassafras Lowery, CPDT-KA, CTDI, tapped her experience as a certified professional dog trainer, and then Wailani Sung, DVM, DACVB, PhD, a veterinarian ...

Humans’ closest primate relatives lost their tails about 25 million years ago, but exactly how has remained a mystery. A breakthrough in genetic research may finally offer answers.