This important study significantly advances our understanding of the skeleton of cartilaginous fishes by using a range of state of the art and complementary approaches to compare the skeleton amongst ...

Scientists in the Azores Islands, Portugal, dropped a baited underwater camera and let it sink thousands of feet down in the Atlantic Ocean. Later, they hauled it up and reviewed the footage. To their ...

The gastrointestinal tract (GIT) of vertebrates develops from a simple undifferentiated tube into highly differentiated regions for the digestion and absorption of nutrients. Each region has a ...

We’ve all heard of the world’s most massive sharks, both past and present. The megalodon, the great white shark, and the whale shark get most of the attention, but did you know that there are a ...

This study presents valuable research comparing three different species of extant cartilaginous fishes and describes new data on ratfish. The methods are convincing, although there remains a concern ...

The ocean is no doubt our planet’s last great frontier, with deep sea flora and fauna still very much a mystery to humanity. But now researchers say that after 40 years of scouring the planet’s blue ...

Scientists in Albania have confirmed the first ever case of identical twins in small spotted catsharks. In February 2024, a commercial trawler operating from Vlorë, Albania, brought up 216 dead small ...

It was a mystery that began with an egg. In 1989, scientists in Australia found a curious kind of "mermaid's purse" – a leathery egg case, which some species of sharks lay instead of giving birth to ...