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Never, they hide in their shells until their skin is hard.
Arthropods adapted to an aquatic environment that need to extract oxygen from water will have gills, for instance most (but not all) crustaceans, like crabs and lobsters. Crabs can come on land so long as their gills are kept moist; those that do usually seek out damp habitats.
Because every year as lobsters grow they have to shed their shell and grow a new one. The soft shell lobster's are aka "new shell" lobsters, and they haven't had time to toughen up their shell. Hard shell lobsters are aka "old shells" because they shedded a long time ago, and their shell has had almost a year to harden up.
how long do lobsters live
how long does fabrics take to decompose how long does fabrics take to decompose
iron does not decompose but after a long time and i mean a long time it just starts to flake away but does not decompose
Seconds! They may spend a good amount of time inspecting the new shell before getting in, though.
Does not decompose
yes they do becuse if they dont the part that goes in the shell is very tender and soft and can get dameged very easy so its good to have difernt sized empty shells in the cage so the crab can change the shells when needed
Lobsters have lived on the earth for 250 million years.
1700 years to decompose
Gold will never decompose.