A large fish-eating dinosaur died beside a river 125 million years ago in Cretaceous Thailand. Now, the remains of this ancient predator are helping researchers better understand Asia's enigmatic spinosaurids.

Conservationists are celebrating the rediscovery of flat-headed cats in Thailand after camera traps recorded the endangered feline for the first time in almost 30 years.

The manumea, a critically endangered ground pigeon and one of the closest living dodo relatives, has been spotted multiple times in a remote Samoan rainforest.

A small study reveals that cats greet male owners more vocally than female ones. But the findings could be a result of cultural norms among the participants, rather than a universal cat behavior, scientists say.

Pumas in Patagonia, Argentina are eating penguins in a national park — and it's changing how the big cats are interacting with each other.

A new study reveals the likely origin of a mysterious spider-like pattern first spotted on Jupiter's moon Europa in 1998. The finding could have implications for a NASA spacecraft en route to the frozen world.

Scientists made a unique discovery in a cave on the Caribbean island of Hispaniola: dozens of fossilized bee nests inside rodent bones that were deposited by owls thousands of years ago.

Warming temperatures appear to be driving genetic mutations in some polar bears to help them survive the shifting climatic conditions.

The genetic link between squids and octopuses may just be found in the vampire squid genome.