Looking for molecular evidence of life on other worlds is tricky, but a test based on the reactivity of carbon compounds ...

New genetic research suggests a common Southeast Asian frog long believed to be one species could actually be six or seven distinct ones.

Advanced 3D reconstructions of the comb jelly’s aboral organ reveal a sensory system far more complex than scientists expected. The organ contains a wide variety of specialized cells and is closely ...

The fossilized remains of a creature with a twisted jaw and sideways-facing teeth have been discovered in the Amazon jungle. Scientists say the plant eating reptiles now called Tanyka consisted of ...

Known as Tanyka amnicola, this lake-dweller with twisted jaws and teeth pointed outward lived in Gondwana 275 million years ...

Biologists identify a new species of "living fossil" chiton through cutting-edge mitochondrial genome sequencing.

The remains of a "weird" creature with a twisted jaw and sideways-facing teeth have been discovered in the Amazon jungle. Scientists say the plant-eater Tanyka was a “living fossil” when it stalked ...

A routine genetic test in South Korea uncovered Acanthochitona feroxa, a chiton species misidentified for years.

Scientists in South Korea identified Acanthochitona feroxa, a new chiton species long mistaken for a nearly identical mollusk.

Scientists found a “big”-eyed creature with “elongated limbs” in a canyon of Iran and discovered a new species, a study said. Roman Nazarov Photo from Nazarov, Nabizadeh, Rajabizadeh, Melnikov, ...

Beneath Siberian permafrost and Antarctic ice, entire Ice Age creatures have emerged with fur, organs, and even liquid blood still intact. From woolly mammoths and cave lion cubs to steppe bison, ...

The blue whale is the largest animal to ever exist — bigger than any dinosaur that walked the Earth. Its heart is the size of a small car, and its tongue can weigh as much as an elephant. Yet this ...