Large mud crabs (Scylla serrata), especially full-grown males with their massive “crusher” claw, have been measured to exert forces in the range of about 600 to 1,000 newtons, depending on their size. That is strong enough to crack thick mollusk shells, damage fishing gear, and certainly cause serious pain or injury to a person if pinched. For comparison, 1,000 newtons is roughly the force of holding a 100-kilogram weight against gravity, all concentrated on the sharp edges of the claw. Even sma

scylla serrata or better known as GIANT MUD CRAB could take of your finger with ease, they are very canabalistic and often fight to eat one another | Brodiemoss