They need them to fight
You can tell a fiddler crab's gender by its claws. A female fiddler crab has two claws, the same size. A male fiddler crab has one large claw and one small claw.
just like any other crab the male is the one with the big claw.. and the female has two smaller claws
No, they both have two claws. One large one and one small one.
If you tip your hermit crab almost upside down, they will come out of their shell a little bit. If the hermit crab is a female, then they will have two little dots on each side of their insides, used for laying the eggs of the hermit crabs. If it is a male you will not find these dots.
Yes,the father of any animal is always bigger than the mother.
are claws of a female different from the male
The male has a flat stomach and the female has a stomach that pockes out so she has enough room in here for thee eggs,males have bigger claws and tails than the female,the female will also grow bigger than the males.
No, but here's a page with pictures of male and female crabs and how to sex them. http://www.thecrabbagepatch.com/crabanatomy.html
You cannot tell the gender from their claws or color. You must look for the presence of "gonopores" at the base of the last pair of walking legs. Gonopores will be on the female crab they look like two small dots. Look up "hermit crab gonopores" for a photo reference.
The female crab lays the eggs, and not the male.
claws
Well, mostly you can tell when they are a bit over one year, mostly its their tail the male has a bigger tail then the female. also the male has bigger foot claws!