During a dive off Argentina, scientists documented a rare jellyfish discovered a little over a century ago and seldom seen since, as well as the fish that keep it company.

Invasive Asian carp have spread around the United States. Wildlife experts and engineers fight to keep them out of the Great ...

A Stygiomedusa gigantea, commonly known as the giant phantom jelly, was filmed at 250 meters below the surface.

The elusive deep-sea creature typically lives over 1,000 meters below sea level, but was seen at around 250 meters. The discovery came amid findings of vast coral reefs and suspected new species.

Scientists with the Schmidt Ocean Institute discovered a rare giant phantom jellyfish during a deep-sea exploration off ...

This huge amphibian can grow up to 1.5 metres long – a new study reveals how it has reached the top of the food chain in ...