Giant crabs weigh up to 4kg

This giant crab is so strong that it can break a coconut, lift up to 28 kg, and add the ability to steal sorrowful demons .

This species eats the coconut by adding shells and eating coconut rice

Researchers at Greifswald University and Germany's Max-Planck Research Institute have discovered the world's largest crab named " Birgus latro " in the primeval forest on " Christmas Island " in the middle of the Indian Ocean.

In December 2008, German experts came to " Christmas Island" and after three weeks of tracking there were traces of giant crabs. Two scientists, Steffen Harzsch and Bill Hansson, are very interested in the special features of this crab called Birgus Latro (also known as Ganjokrebs or Kokoskrebs) that currently live only on a number of small islands in the oceans.

The giant Birgus latro crab can weigh up to 4kg, only live on land and specialize in eating coconut.

They are as big as a ball, weigh up to 4kg, have 10 legs, red eyes, body 40cm long, have the ability to change from blue - purple to red - orange and when raised, can reach up to one meter, pairs more Big and strong, it is possible to steal your finger easily. Coconut crab claws are strong enough to break an open coconut, and can be used to lift weights up to 28 kg.

Birgus latro specializes in eating leaves and coconuts so it is also called coconut crab . If coconuts are not available on the ground, coconut crabs can climb trees and cut them down. Coconut crabs often eat fruits, nuts, the core of fallen trees and force the mice to eat.

In particular, they live on land, can not swim, and will drown in the water . Coconut crab is the world's largest terrestrial arthropod and it is also the world's strongest crab. This crab has a lifespan of 60 years.

Mating occurs on land, but females migrate to the sea to lay their fertilized eggs when they hatch.

Coconut crabs live alone in underground caves or cracks in rocks, depending on the terrain where they live. They dug burrows under sand or loose soil.

During the day, they hide themselves to avoid dehydration because of heat. Caves of coconut crabs have thin but very strong fibers from the coconut shell that they line under. When resting in a cave, coconut crabs close the entrance with one of its caves to create a small damp area in the cave for its organs to breathe.

This species climbs very fast.

Professor Harzsch said, this crab has a very delicate olfactory system. Experimenting the sense of smell and studying chemical sensitivities for them, the scientists concluded that the latrant Birgus has an extremely good olfactory system.

For evolutionary researchers this is a special concern, because this shows that many species, including the Birgus latro crab, have a "jump" from the sea to live on. land.

In fact, this crab was discovered more than 150 years ago, when British scientist Charles Darwin, founder of modern evolutionary theory, had the opportunity to set foot in the Indian Ocean in 1836 to describe crabs. specialize in eating these leaves and coconuts. However, there have been very few observations since then about the latent Birgus crab.

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