Yes they do.
And mating occurs when the female mud crab is in the soft-bodied condition following moulting. Female mud crabs in Australian populations migrate offshore to spawn and are rarely seen. 2 to 8 million eggs are produced in each spawning. Female crabs incubate the eggs for 2 to 4 weeks under their abdominal flap. For more information on the cycle of the Mudcrab
No, the crayfish is basically a miniature breed of lobster. Crayfish have exoskeletons like crabs and insects. That is what holds them together.
Crayfish tend to breed at around 32 days old. They are breed very early on in life because they typically do not have a long lifespan.
Crayfish
My older crayfish died and my littler crayfish has not yet how do/can they die?
Crayfish are known as both crayfish and yabbies in Australia. "Yabbies" are freshwater crayfish, often found in rivers, creeks and dams in rural areas.
Do crayfish have tarritoris
Crayfish are omnivores.
protects the crayfish
Crayfish are related to small lobsters. Here is a link for pictures of crayfish. http://mackers.com/crayfish/pics.htm
Crayfish are invertebrates.
Crayfish-ess.
the crayfish resembles a lobster