Four recently made known species of freshwater crab, bright purple in hue of skin, have been discovered in the biologically divergent but ecologically-threatened Philippines, the supply with hands who found them said Saturday.
The puny crustaceans burrow under boulders and roots in streams, feeding steady dead plants, fruits, carrion and petty animals in the water at darkness, said Hendrik Freitag of Germany’s Senckenberg Museum of Zoology.
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Found simply in small, lowland-forest ecosystems in the Palawan island group, most have purple shells, through claws and legs tipped red.
“It is known that crabs can discriminate colors. Therefore, it seems that may be liked that the coloration has a notable function for the social behavior, e.g. mating,” Freitag told AFP through . email on Saturday.
“This could account for why large males of various Insulamon group are more reddish compared to the as the world goes violet females and immature males.”
Scientists began extended investigations of similar freshwater crabs in the surface in the late 1980s, when one new species was found — the Insulamon unicorn, Freitag before-mentioned.
More field work led Freitag to conclude there were four other unique species.
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