Facts about Crabs: Crabs (Brachyura in Latin) is a delordning of aquatic crustaceans.Â Some species fished for food, often regarded as delicacies.Â The crabs have ten legs of which the first pair carries claws.Â When I was younger, I remember that my friend and I were out fishing crabs with his family.Â I remember not really so much more than I thought it was fascinating that they went sideways than straight ahead.Â This probably already knows most, but here are ten facts you may not know about the crabs!
You probably did not know Facts about Crabs
01) The crab are also known as â€œsea spiderÂ “, when – like the spider – also has feet that can bend at the joints in a similar way.Â The only thing that distinguishes them is that all the crabs have twoÂ clawsÂ on the front legs.Â And likeÂ fliesÂ constituted the eyes ofÂ hundredsÂ of lenses.
02)Â Grapsus grapsusÂ (see picture below) is the world’s mostÂ colorfulÂ crab, and was named byÂ Carl LinnaeusÂ in 1758, when he was the first to describe the crab unique colors.Â It is red, orange, yellow and white.
03)Â There areÂ two typesÂ of crabs.Â First it is the real crabs (that Brachyura) having a very short abdomen and uses four pairs of long leg to walk.Â The real crabs includeÂ blue crabs,Â spider crabsÂ andÂ ghost crabs.Â Others are “false” crabs (anomurans in Latin), which has a longer abdomen and lower legs to walk with.Â The so-called false crabs includeÂ hermit crabs,Â king crabsÂ andÂ hairy pink squat lobsters.Â There are aboutÂ 5000Â kinds of crabs, but only aboutÂ 4500Â of these “real” crabs.
04)Â Facts about Crabs: The world’sÂ largestÂ crab in the world is the giantÂ Japanese spider crabÂ (see picture below).Â The crab can be almostÂ four metersÂ long, measured from klospets to klospets when the legs are stretched.Â A normal weight at the Japanese spider crabs tends to be aroundÂ 20 kg.Â These crabs have almost only been observed in the Pacific Ocean aroundÂ Japan.
05)Â One of the biggest reasons that the crabs usually tend to beÂ plate-shaped, because they will easily be able to squeeze into narrowÂ crevicesÂ .
06)Â Crabs live in more different places thanÂ anyÂ other marine animals.Â They are almost everywhere in the sea, even under the ice inÂ AntarcticaÂ and insideÂ underwater volcanoesÂ One type of crab living also onÂ landÂ and climbing trees.Â Talk about that one would have been surprised if we saw a crab klÃ¤ttrandes in a tree!
07)Â Facts about Crabs: The word â€œcancerÂ ” is derived and are related to crabs in Latin.Â The famous GreekÂ HippocratesÂ andÂ GalenÂ – with many others – noted the similar swelling as a tumor gave the crabs veins.
08)Â A male or female crab can be distinguished by looking at theirÂ bellies.Â In most male crabs is abdominal shapeÂ narrowÂ andÂ triangular, while the females have aÂ widerÂ andÂ rounderÂ belly.Â In addition, the female crabsÂ less chlorineÂ than the male crabs have.
09)Â Facts about Crabs: WhileÂ previous researchÂ showed that crabs do not feel anyÂ Â painÂ , now showsÂ new researchÂ that crabs not only suffer pain but they alsoÂ rememberÂ it.Â Consequently, researchers said that the crustaceans should be treated withÂ the sameÂ care asÂ vertebrates.
10)Â A female crab layÂ millions of eggsÂ at one time.Â She wears them in hisÂ bodyÂ until the eggs are ready to hatch.