It will.

The crab has the ability to regenerate broken limbs, the fundamental reason is that there is information about this function in the crab's DNA, when the crab encounters danger, the instinct to make its broken limbs in the severed mouth will produce some meristematic cells continue to divide, differentiate, grow, and gradually grow new limbs. It usually takes 45 days-100 days to grow a new limb.

The reason why crabs break their legs: sometimes crabs are frightened or think that someone is disturbing him and he will automatically break one of his legs to escape, just like the lizard's tail.

Life habits:

A small number of crabs grow and reproduce exclusively in freshwater, where they live under rocks in mountain streams, and a few crabs, such as the ground crab, can adapt to life on land by burrowing in moist mud holes and migrating to the sea during the breeding season.

The vast majority of crabs are omnivorous. Some crabs are carnivorous, such as the pike crab can eat fish, shrimp and mollusks. A few crabs, such as the stranded window crab, scrape or filter feed on algae and organic debris.

There are about 4700 species in the world and about 800 species in China, and the common ones are the genera of Guan Gong Crab, Pike Crab, Stream Crab, Beggar Crab and Mitten Crab. Crooked-tailed suborder of porcelain crabs, cicada crabs, anthropomorphic stone crabs, hermit crabs, coconut crabs and other genera, although also known as crabs, but with the short-tailed suborder of the real crabs are different, is not here to narrate.