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All clownfish start off as male, but can switch to female when circumstances allow, for example, when the only female present dies or disappears. In a new study, researchers found that the male-to-female sex-change occurs first in...
People eat a lot of fish. Different sex-changing fish can follow several signals that prompt them to change sex. Some change from female to male at a fixed size or age. Often, fisheries will only harvest fish over a certain size. This means catching more males because they are usually bigger, which then skews the population towards female. Not enough males are then available to fertilise all the eggs produced by the females.
99.8% of shark fins come from Indo-Pacific: conservation efforts in Atlantic Ocean are working
Researchers find dolphins to be far more similar to humans than previously thought. For those who have ever observed monkeys and apes – our closest evolutionary cousins – in the wild, in a zoo,...
What happens to baby turtles after they scramble off the sandy beaches where they are born and swim into the open ocean?
Restoring whale numbers would mean more iron in the water from their poo, which would mean more phytoplankton, and more carbon dioxide taken up from the atmosphere. Whales once contributed to as much carbon removal as forests of entire continents.
Take your citizen science to the next level with Operation Oyster. Divers are asked to incorporate oyster data gathering into their regular diving activities throughout the year.
Ocean warming is threatening coral reefs globally. Whenever sea temperatures rise in an area, coral reefs degrade. However, a new study has found that corals at or near the equator are less affected than corals elsewhere. The findings from Florida...
Marine biologist Anna Sobral founded Manta Catalog Azores in 2012 to develop understanding of manta and devil rays. The Azores is one of the few places that these rays are known to congregate: the large Sicklefin devil...
We talk to Nuria Baylina about making the Manta Ray Azores project self-sufficient with the help of holidaying scuba divers.