invertebrates

Home sealife invertebrates
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.
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?
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...
Cuttlefish and Camouflage

Cuttlefish – Master of Camouflage

What makes the Cuttlefish so good at controlling its colour and blending in with its surroundings? This month scientists at Harvard University and the...
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.
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...
Plumose anemones

Attack of the Clones: Plumose anemone is creature of the month

As Plumose anemones can clone themselves, forests of them appear together. They comprise a tall, smooth column topped with a crown of feathery tentacles. Individuals are usually white or orange. They like areas with currents so tend to live on prominent pieces of wrecks or on rocky pinnacles - good diving areas.
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?
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...
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...