A fossil record in central Colombia reveals how marine animals evolved during a period of environmental change.
Ophiojura, discovered living on a seamount deep in the Pacific Ocean, is the last known survivor of a unique group of animals that diverged from its closest relatives way back in the Jurassic period.
During mating season, a male turtle-headed sea snake will often lose sight of the female before mating can happen. The female may be metres away, but the male won’t ever find her again.
For the endangered Kemp’s ridley sea turtle, every individual matters. A team of veterinarians and biologists has formed a network along the Gulf Coast to save injured sea turtles and the species.
We recorded the largest number of bigfin squids ever seen in one area. Before this, this rather elongated creature had only been spotted a dozen times across the globe.
This newly discovered ancient monk seal is challenging previous theories about how and where monachine seals evolved. It’s the biggest breakthrough in seal evolution research in about 70 years.
During the Paleozoic Era, giant sea scorpions would have been the equivalent of a great white shark in their food web.
New research shows how two types of common UK crabs will respond to increasing carbon dioxide and seawater dilution.
A new study demystifies regional differences in mercury levels in marine animals in the Canadian Arctic.
It’s quite hard to tell when a sea creature is extinct – there’s always hope it will turn up somewhere.