Seafood Facts

Lobster History

Up until the mid 19th Century lobster was originally only used for bait and for fertiliser for fields.

It was classed as a poor mans food.

Mussels are either male or female – on some species it is very difficult to tell the difference without a microscope. However males tend to have paler meat while the females are more orange.

How to tell the sex of a Crab

The male crab has much larger claws than the female crab (the picture on the left shows the male at the bottom – he has one of his claws tucked in.)


The underside of the male crab has a V shaped marking while the female does not. See the photos below which show the difference between the male and female underside.

Shell Facts

Lobsters and crabs shed their shells in order to grow.

A lobster will have shed it’s shell up to 25 times by the time it is 6 years old.

After 6 or 7 the males shed their shells every year and the females shed their shells every two years.

The exposed new shell is soft and they are known as ‘soft shells’

It takes up to 2 months for the new shell to harden

When a mussel attaches to a rope or rock it then stays in the same place for the rest of it’s life.

Lobsters are cannibals which is why the pincers are tied with a band. If this wasn’t done they would happily eat each other!The bands help to prevent the lobster doing us humans any damage too.

Why do lobsters, crabs & prawns go red when cooked?

Lobsters, crabs and prawns have a carotenoid pigment called astaxanthin in their shells. They also have other pigments which combined give these shellfish their bluey, greeny and brown colourings – all perfect for disguise.

When lobsters, crabs and prawns are cooked and the shells get hot the astaxanthin remains stable while the other pigments break down resulting in the vibrant red colouring.

Astaxanthin is the same pigment that makes a salmon pink.

A lobsters teeth are in it’s stomach

The threads that attach mussels to rocks, ropes etc have got a very strong adhesive quality which will even cling to Teflon. Scientists are attempting to develop a mussel based adhesive for use in eye surgery and other applications.


Lobsters with no claws are called pistols, bullets or dummies

Lobsters with one claw are called culls

They can grow back claws, legs and antennae


A scallop can swim along by opening and closing it’s shell


They have up to 60 eyes

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