Newly Discovered Sea Creature Was Once the Largest Animal On Earth

Posted by samzenpus on Wednesday March 11, 2015 @07:50PM from the we're-going-to-need-a-bigger-pot dept.

sciencehabit writes Almost half a billion years ago, the largest animal on Earth was a 2-meter-long, helmet-headed sea creature that fed on some of the ocean's tiniest prey. The newly described species is one of the largest arthropods yet discovered, a class of animals that includes spiders and crabs. The well-preserved remains of the multisegmented creature are providing clues about how subsequent arthropods' legs may have evolved from the dozens of stubby flaps used to propel this beast through the water.

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Wonder how they find such things by watchcriclive1111 · 2015-03-12 00:38 · Score: 1, Offtopic

Keep reading this kind of stories. But I wonder how the scientists come to a conclusion, about newer species and all the evolution that might have happened, and make people believe it... just based on theories.