It depends on the type of crab. For crabs like Mini Crabs, the male will have one large front claw and one small one, while females have two small ones. I am not sure about other crabs.
For most crabs, if you flip them onto their back, males tend to be flatter whereas females are rounder! When you put a male and a female together you can clearly tell which on is female, they have a bigger underside.
http://farm4.static.Flickr.com/31622632570873_feaab4c966.jpg
Male on left, female on right
When talking about Mud Crabs.....each crab has a tai, When you turn the crab over, the male's tails is distinctly shaped like a triangle while the Jenny has a rounded tail!
The female is always the larger of the clowns. The male is the smaller. If you get them when they are small enough, they actually have no real sex and it will be determined by which is more dominant. Then, if your large female dies, the male will actually take it's place and become a female.
If you are asking b/c you have eggs in your tank (as I do right now) the male, as far as I have seen, is more attentive and protective of the eggs. I am hoping to have some little clownies here very soon!
Hope this answer helps you out.
A male has one large claw and a female has the same size of claws
Males are bigger than females
female crayfish have an egg pore
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male
When clams are fist born they are male, but eventually as they get older some of them choose to be females.wow that's just weird
One clam opens it shell. Then the next. Then the male clam sticks it "tongue" in the female clams mouth. Then the female and male shut their shells. Then they start to do a "dance" Then they release their shells and continue as normal.
Clams have sexual reproduction. A male clam releases his sperm into the water at the same time that a female clam releases her eggs into the water. Somehow the male and female clams know how to do it at the same time and somehow the sperm and the eggs get together.
how do u know if a clam is a male or a female
Feeder fish, How do you tell male from female of the?
You can tell if someone is male or female by their reproductive parts.
How do you tell a male pacific frog from a female
Both male and female emus have blue on their necks. It is impossible to tell the male and female apart by appearance alone.
Clams can be either male, female or both (hermaphroditic) depending on what stage it is on during its life cycle. For example, the hard clam (quahog) begins its life cycle as a male, then later on may become a female. The various kinds of cockles found around the world are all hermaphroditic as adults. There is no way to really tell a male from a female clam. Fortunately, either sex tastes equally good, which for most people is probably all that matters in this regard.
You can tell a male angel fish from a female one by all the colorful stripes it has. [the male one]
Because the male has a mane and the female does not have a mane.