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.

Tail OS, an operating system optimized for privacy and anonymity, has released version 4.5 this week, the first version that supports a crucial security feature named UEFI Secure Boot.

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 ...

Diplodocids were a family of dinosaurs with long necks and, often, even longer tails. For more than a century, scientists hypothesized diplodocid dinosaurs might have whipped their tails around as ...

Tail-wagging is rhythmic, and previous studies have found that rhythms — everything from music to the sound of pounding horse hoofs — trigger brain activity that helps make people feel joyful.

Tails developers have warned users to stop using the portable Debian-based Linux distro until the next release if they're entering or accessing sensitive information using the bundled Tor Browser ...

Scientists found that young American gators can regrow their tails up to 9 inches, and knowing that might be helpful when studying human regeneration.

TAIL TROUBLE Salamanders such as the axolotl (above) can regrow nearly perfect tails, including missing nerve cells. Lizards such as the green anole (below) can’t.