Crabs

eggs

Attract Females (The bigger the better)

Fend off Predators

It's used just like a normal clabs claw, think of it as a normal claw and the other claw is small

Yes, I can see a couple.

It would depend on why it came off, and that question can be hard to answer. If it came off because of stress, the crab is usually too far gone to recover, and will keep losing limbs until it dies.

If it came off because of a fight, the crab has a good chance of living as long as the environment in your habitat is suitable for the crab to recover in. This means deep, moist sand, proper heat and humidity, etc.

If it came off because the crab was stuck somewhere and broke it in attempt to free itself, the crab will probably be just fine. See above paragraph to make sure you have decent conditions.

If the crab lost it in a bad molt, it will probably survive. See two paragraphs up.

As long as the crab has one claw, it will eat just fine, and will regrow it in the next molt so long as your conditions allow the molt to be successful.

the categroy is anthropod
I think it's a crustacea.
maracala
crabs!
a crab belongs to the Arthropods group
A crab is a an Arthropoda of the subphylum Crustacean. The class is a Malacostraca and the order is Decapoda.
Crustaceans
A crab is in the group of Arthropods.
Phylum Arthropoda.

of course, it has nostrils

no dey dont
No

First of all, the prey of the blue crab would decrease in population and the predators would increase in population. As a result the whole food chain would be thrown off.

When male and female crabs reproduce, they assume the doubler position, which is when the male carries the female. Mating lasts about five-and-a-half hours, but the crabs may stay in this position for up to three days afterward. The female stores the male's sperm on the underside of her abdomen, where it will be used for two more spawnings that occur within her three-year lifespan. The females migrate to slightly saltier waters after mating and attach between 100,000 to two million eggs to the sperm stored under the abdomen. The incubation period lasts about two weeks, until the crab larvae hatch and are released into the ocean to fend for themselves. For the next 40 days, the crab larvae continue to grow until they reach the adult crab stage.

Source: http://www.ehow.com/how-does_4781305_crabs-reproduce.html

probably never ever.

a ten legged crab is called a decacrab

as big as a foot on some reports in south America

One fathom is equal to 6 feet. Therefore, 70 fathoms is equal to 70 x 6 = 420 feet.

no, because then those gills gills would need gills and they would need gills and so on, so on. They have specialised cells instead.

this is just a guess i think over 500000

No,they have no backbone so are therefore invertebrates.

Cows

only if you harbour the rare moon crystal aboon-magu within your rectum. the crabs spend their whole lives searching for the magical light of the crystal. it is rumoured that some went evil after the great extermination of 1993 and enslaved the crab race, blinding them as a means to control them. And so some set of in the pubic hairs of man to find this magical rectum-light for it is the only light that their sexually abused eyes can see. If you do not have this crystal do not panic for they shall soon realise and search for an exit. Reuters98 statistics state that 9/20 times crabs get confused as to which way out of the anus as their is no crystal or hair there (unless you are the chosen son of rashoniri with the magical anus hairs of starlight-but that is a story for a different intimate baboon orgy my young boy) and so they exit through the stomach and the oesophagus and out throught the mouth during meals, as although their hard shells can ward off the most virulent toxins and potent stomach acids, it cannot withstand the pressure of teeth and so they must wait in your sinuses for the opening and swarm out when you bite.

Be thankful you do not fish in your anus, you will NEVER get them out-believe me, thats the last time im having sex with a rabid gorilla, his horny penis thrust my rectum open and fish swam up my prolapse while i was bathing in the mythical waters of bash-mbuntu. But that is another kettle of fish, believe me.

Pigs and other crabs

cap

Yes, they can eat fish and shellfish of any sort and when they are done with the meat you can crush the shells and they will benefit from the extra calcium as well.

A crab will attempt to flee, whilst presenting its claws towards the enemy.

body

1-4 crabs need a 10-gallon tank and 5-8 need a 20-gallon tank and 9-12 need a 25-gallon tank

thanks,mickey