invertebrates

Home sealife invertebrates
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?
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.
octopus intelligence

The most intelligent invertebrate – what can the octopus do?

The octopus is believed to be the most intelligent of all invertebrates. As well as its relatively large brain, each of the octopus' eight...
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...
Cuttlefish

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.
plankton

Help Scientists Classify Plankton, from the comfort of your Computer

Researchers at the University of Miami want our help in classifying millions of underwater images of plankton. An online “citizen-science” project called “Plankton Portal” has...
Anemone Hermit Crab, Dardanus species

Bodyguard: How the Anemone protects the Hermit Crab

Hermit crabs scuttle about the sea-floor using someone else's shell for a home. They always use empty shells and never kill the original occupant. When...
Is it ok to eat squid?

Squid – the prawn cocktail of the 21st century – but is it OK...

Which squid can you eat with a clear conscience?
Nematostella

Venomous sea creatures change their venom recipe often

Venomous sea creatures often change their venom recipe, adapting the potency and recipe of their venom to suit changing predators and aquatic environments.
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....