I did not think that the crab would have been dexterous enough to actually remove the guy`s shorts to get at the tasty meat beneath.
I took some liberties with that, since the crab already was not realistic. Crabs are scavengers and it wouldn't have killed the guy. Since we made the crab a man killer, I made him have dexterouse claws.
I take it that the crab would have used its large claws to remove the guy`s ample sized genitals and lift them to its mouth for eating.
Yes, it used its claws to shred the meat off the body and its pincers to transfer the food to its mouth.
How long would it take the large crab and the smaller ones to pick the guys body clean ,what would be left,
For the large crab, about an hour. A horde of small crabs would descend and clean up the leftovers in 10 - 15 minutes. Bones, teeth, and hair would be left.
If his friends managed to get a cross to were the crab lived while it was away on another food hunting expedition, what all would they be able to recover of their friend.
His clothes, a skeleton, and his hair.