Home sealife invertebrates
starfish, Pisaster ochraceus

Mysterious disease creates Zombie Starfish

Sick and dying starfish (sea stars) have appeared in a multitude of locations between Alaska and southern California. "It's like a zombie wasteland," says...
Mauve Stinger Jellyfish, Pelagia noctiluca, by Andrew Reay-Robinson

Killer Robots Slash Jellyfish

Korean researchers test jellyfish-killing robots. Jellyfish cause the fishing industry to lose money by breaking fishing nets. They sting swimmers. They block the seawater cooling systems of power plants. In 2009, a ten-ton Japanese trawler capsized after the three man crew tried to haul up a net loaded with jellyfish. But does chopping millions of jellyfish up solve the problems?
Jewel Anenome

Jewels of the Sea grab animals with their 100 ball-tipped tentacles then paralyse them

A myriad of colour patches cover the rock when jewel anemones make it their home. These flower-like animals, up to 2.5 cm (1") across, catch...
Deep sea octopus

Deep sea octopus broods eggs longer than any known animal – 4 years

Deep sea mother octopus looks after eggs for 4 and a half years - breaking records for any animal's brooding period.

Sex-change crustaceans retain some masculinity

Male crustaceans avoid being completely feminised by pollutant-contaminated seawater as they "lock down" their maleness. New research by scientists at the University of Portsmouth has...
Crown of thorns starfish, COTS

Divers kill crown-of-thorns starfish with vinegar whilst scientists unleash starfish-killing robot

Divers are killing crown-of-thorns starfish by injecting them with vinegar. Meanwhile, scientists are testing using starfish-killing robots rather than divers.
Lion's mane jellyfish

Giant Lion’s Mane Jellyfish is Creature of the Month

With tentacles up to three metres long and covered with stinging cells, it's better not to get too close to the Lion's Mane jellyfish....

Stealthy cuttlefish use electric cloaking

Cuttlefish are renown for their tremendous camouflage capabilities - changing the colour and texture of their skin to match their surroundings. They have another weapon in their hide and seek armoury though - electric cloaking.