New sharks and rediscovered rays
Australian marine researchers report a double success.
Marine researchers from Australia’s University of Queensland have discovered four new species of walking shark and a ...
Giant squid, pretty big genome
But its genes look a lot like those of other animals.
The giant squid – the subject of many a dramatic tale – is actually as mysterious as it is big. In this original ...
Crabs compromise to avoid competition
Hermit crab species co-exist by living in different shaped shells.
Rather than compete for shelter, two closely related hermit crab species appear to have adapted to differently shaped...
Antarctic alert for invading mussels
Invertebrates, plants and algae on list of top threats.
Mussels may look rather mild-mannered, but they are prominent in a new list of non-native species most likely to inva...
The mechanical mystery of interlocking shells.
Bivalve molluscs include marine creatures such as clams, mussels, oysters and scallops. At first glance the bivalve b...
Does ocean acidification affect coral reef fish?
Scientists repeat studies, but get different results.
The direct impact of ocean acidification on coral reef fish may not be as bad as predicted and feared, new research s...
An in-depth look at cuttlefish hunting
The tricky part was getting them to wear glasses.
Yes, this is a cuttlefish wearing 3D glasses. The reason is that it was one of a group of cephalopods invited to a s...
Red brittle star ‘sees’ without eyes
Scientists describe a clever new mechanism for vision.
The red brittle star captured scientific attention three decades ago thanks to its dramatic change in colour between ...
Why are whales so big, but not bigger?
Researchers identify biological drivers and ecological limits.
Whales are huge mammals weighing from 20 to 200 tonnes. The blue whale, the largest animal ever known to have existed...
There's a new squid in town
But it doesn’t look like most other squids.
Japanese and Australian scientists have identified this new species of bobtail squid in the waters around Japan’s Oki...
The vital role of whale grandmas
Post-menopause, they help young ones survive, study shows.
Female killer whales usually stop reproducing in their 30s or 40s, but like humans they can live for many decades fol...
Parrotfish thrive in adversity
They grow in size and number in coral degraded areas.
The reef-dwelling parrotfish doesn’t just thrive in adversity, it helps turn things around. Marine scientists have d...