A yet unnamed Australian spider weaponizes silk to hunt a single ant species.

Adolescent appearance may predict survival into young adulthood, a new study suggests.

Webb found the same unexplained infrared fingerprint on two frozen worlds.

The transplant may expand a scarce organ supply for people living with HIV.

The rare blade may have belonged to a high-status warrior in Norway.

Daily tracking points to a possible hormone-linked risk—and a simple way to reduce it.