The world's largest invertebrate remained hidden from humanity until a tantalising glimpse 100 years ago. But it would be ...

According to Lawless, synthetic cuttlefish ink compounds could be made and distributed in water to keep sharks away from ...

Paleontologists have revealed a previously unknown vampire squid species that lived about 183 million years ago. The newly identified species, named Simoniteuthis michaelyi, was described as a ...

A photo that has been shared online for years allegedly shows a giant squid washed up on a beach. In early January 2025, an X user posted the photograph at the top of a thread supposedly showing the ...

The chambered, or pearly, nautilus (Nautilus pompilius) is a charismatic cephalopod species known for its exceptional spiraling, chambered shell. It belongs to a family that has barely changed since ...

The largest so far was 1.8 metres long and weighed 5.9 kilogrammes. But this is still tiny in comparison to the biggest cephalopod species, the colossal squid. Dumbo octopuses live in the deep open ...

Some species have more than 500 million neurons, he adds—compared to around 70 million in lab mice—making cephalopods especially intriguing as models for neuroscience. Chung and his colleagues decided ...

But figuring out exactly how many species have been found so far is a bit tricky. Like modern cephalopods, ammonites displayed sexual dimorphism, which is the noticeable difference in appearance ...