Seals don't open lobster shells. They eat fish.
Chitin in crab and lobster shells can be used to make contact lenses and dis-solvable stitches.
by cracking it open..
chitin
When crustaceans shed their shells it is called "molting."
A lobster does not have a backbone they are a crustacean which has shells
Lobsters and grasshoppers grow by molting.
No they are not high in calcium. Shrimp shells are made of chitin, the same material insects exoskeletons, crab & lobster shells, and spider-webs are made of.
The lobster protects himself with his pincers and tough shell.
They hide a lot in holes and crevices, their color blends with their normal background, they have tough, hard, and spiky shells, and they use their claws as weapons.
because using the process of allimanation athropod would be the only possible answer
Yes, they can bite as well as pinch w/ their claws. Some lobster species can easily bite the tip of your finger off. This has happened to a few people. If you search for pictures of lobster bites you can see this. Their mouths are designed to be able to crush mussel shells so they can eat the meat inside.