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Crabs

This 10-legged animal walks sideways and is a popular seafood dish. Ask questions and find answers about their diet, habitat, and behavior here.

2,680 Questions

How does a crab breathe on land?

Crabs need oxygen, just like we do, but instead of using lungs inside the body they use gills outside the body to obtain it.

The mouthparts are visible on the underside of a crab. The gills through which the animal obtains oxygen cannot be seen. They are soft structures under the side of the shell.

Their shells help to trap water near their gills so that they can still breathe the oxygen .

Do crabs hide in the sand?

So that they can molt in peace. Their life consists of eating "normal food", sleeping, crawling, burrowing, molting, eating "old dead skin", eating "normal food", sleeping, crawling, burrowing, molting, eating "old dead skin".....repeat over & over & over.

If their human adds a saltwater aquarium, then they will lay eggs somewhere in that sequence.

Otherwise it remains the same life cycle.

Are crabs at the bottom of the food chain?

They act as street cleaners because since they are decomposers, they have to pick up all the bacteria and waste from secondary consumers, primary consumers, and producers. That's why they are considered at the top of the food chain knowing that producers are at the bottom because they provide so much.

Who produces the most crab?

In biological circles, the producers or autotrophs are plants and green algae, which capture energy from sunlight to produce their own food, or in other words to capture carbon into the food chain. By contrast, crabs eat other organisms and are thus variously classified as omnivorous, often predatory; as such they are categorized as heterotrophs, or as consumers.

Is crab in the shrimp family?

No, Spiders are Arachnids and Crabs are crustations.

How much does a dungeness crab weigh?

I have been crabbing for 30 years and have caught a lot of crab, the biggest one I have ever measured is a hair under nine inches. A hair is about a millimetre in my books. I have heard of people saying they have caught them over 10 inches but I don't believe it.

What is a crab with ten legs?

Yes, but only 8 of those are used for walking. The other two, (i.e. pincers) are used for defence and eating.

How is crab and fish similar?

Well you would have to say they have claws and are coloured in red or orange and obviesly they both live in the sea but some are fresh water.

What is the setting of Juan Tamad and the Crab?

Juan Tamad was asked by his mother to buy crabs from the market. On his way home, he got lazy and decided to sleep under a tree. He then set the crabs free, saying to them, "Go ahead and go home. I will just rest for a while under this tree."

When he got home after he woke up from his nap, his mother asked where the crabs were. He was surprised and told her, "Are they not home yet? I sent them ahead so you can cook them already."

Juan Tamad's mother got mad and pinched his ears. "You are a good-for-nothing lazy boy!"

Why are blue crabs so important to the Chesapeake bay?

In the Chesapeake bay, blue crabs eat and mate.

A female housefly can lay how many eggs?

Each female fly can lay approximately 500 eggs in several batches of about 75 to 150 eggs.Â

How many eggs do Japanese spider crab reproduce?

Spider crabs reproduce sexually, the same as normal crabs

Are fiddler crabs edible?

I saw some people eating marsh crabs (whole) on Iron Chef. They were tiny and cooked as part of a dish. I believe these are related to fiddler crabs. I also found a recipe if you are interested:

Fiddler Crab a la Nero

Source: McCall's Coast to Coast Cooking

1/4 cup butter or margarine

1 pound king crab meat

1 (4 ounce) can pimientos drained and halved

2 tablespoons snipped chives

1/4 teaspoon salt

1/4 teaspoon paprika

1/2 cup canned beef gravy

1/2 cup heavy cream

1/3 cup cognac

Cooked white rice

Melt butter in chafing dish or medium skillet. Arrange the crabmeat around edge of dish. Place pimientos in center. Sprinkle pimientos with chives. Sprinkle crabmeat with salt and paprika. Add gravy and cream. Cook over low heat, until mixture is heated through, stirring crabmeat gently to keep pieces as whole as possible.

Warm cognac in small saucepan. Ignite with match. Pour flaming, into crabmeat mixture.

Serve over rice.

Makes 4 servings.

How much iodine in crab meat?

bump pumpy bump.... I'm determined to find out... hyperthyroidism, diahhrea... it' caught my attention. Be back soon.

About how many eggs does a female crab lay?

About how many eggs does a female crab produce

How can hermit crabs have crabs?

They have 2 eyes, and 10 legs. They use the back 8 legs to move, and THEIR left (bigger) claw for fighting and climbing. They use their right one for eating mainly. They also have a shell, which is their home. They will move to a slightly bigger shell once they are have got grown alittle, or they have molted.

What fruits and vegetables do hermit crabs eat?

The best diet for a land hermit crab is basically what you feed yourself (with the exclusion of highly-processed foods and sugary snacks, of course). Land hermit crabs are omnivorous and therefore eat just about anything. You can feed them meat, fish, vegetables and fruit (yes even citrus fruit!). Crabs also like tannin-rich foods, such as oak leaves and tree bark. Before giving your crabs these things as food, make sure they are thoroughly cleaned by washing in water (no soap) and allowed to dry -- crabs like their leaves crunchy. Hermit crabs love try different foods. In fact a study found that they prefer to have a different food each time they eat. Of course, this isn't always possible, but you should offer your crab a variety of foods. Some other foods your crab should enjoy are: • Fruit, especially tropical fruits such as the crabs would find in their native habitat: mangoes, coconuts and papayas. Just be careful they don't get ahold of any fruit "pits." • Vegetables of all kinds • Meat. Make sure it is well-cooked and that there is no sauce or butter on the meat that could cause them problems. In particular, hermit crabs like to pick meat off of bones. They also enjoy steamed shrimp tails and any sort of dead crustacean. Yes, they are cannibals, it is a studied and proven fact. It is recommended that meat be put into the crabitat at night and removed in the morning to discourage flies and other, unwanted scavengers from visiting the crabitat. • Nuts, applesauce, raisins, trail mix, peanut butter, honey, cooked egg, cereal, crackers, washed grass, and popcorn are some of the miscellaneous favorites people have reported their crabs enjoying. • Dairy foods may be given to the crabs in small amounts and not too often.

Some people notice their crabs are partial to 'junk food' such a corn chips, sugary cereals and pretzels. Though they may like these foods, they should of course be limited to occasional treats. Glad I could be of help!!!

wow nice yu got this all off of HERMITCRABS.com

What type of eater is a decorator crab?

by their jaws because when they pick up the food they put the food in their jaws which is really their mouth

Is crab annelida?

Yes, crabs are apart of the phylum Annelida

Where do you put a lucky horseshoe?

Traditionally above the front door, but must have the ends pointing up or your luck runs out...

What types of dead animals do crabs eat?

they eat the reamans of baloga whahle, dead fish and kelp

How long can a rainbow crab live out of water?

Cardisoma armatum is land crab which could live out of water without problems. But necessary is high level of humidity and shallow pot with water for drinking and washing gills too.