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.

A new study suggests that a single genetic mutation helps explain why monkeys have tails, while apes and people do not.

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 ...

How different would our lives be if humans had retained their tails? This question was originally answered on Quora by Audrey Ackerman.

The Wild West looks tame beside the lawless, senseless Continental plains and sierras of "Heads or Tails?," an enjoyably off-kilter Euro-western that honors the stylistic and structural traditions ...

The findings flip the long-held belief that dogs wag their tails when happy, and instead suggest tail wags made people happy, so we selected for the trait.

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.

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 ...

If your tails came from a batch of seasoned shrimp—say a Cajun boil or scampi—you can expect a little bit of that flavor to come through, but the predominate notes will be deeply savory and a ...

The long structures seen in manta rays and their relatives function as an early warning system, rather than a defensive weapon.

Salamanders and lizards can both regrow their tails, but not to equal perfection. While a regenerated salamander tail closely mimics the original, bone and all, a lizard’s replacement is filled ...