Researchers Say, Evolution Favors Bigger Sea Creatures

February 20, 2015 9:16 PM

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Researchers Say, Evolution Favors Bigger Sea Creatures

Since the time that animals first originated on the Earth around 550 million years back (based on fossil records), evolution has favored bigger animals. As per a broad new study led by analysts at Stanford University, marine creatures have been getting larger since the Cambrian period (500-544 million years back).

The increase in body size was not by chance. It can’t be clarified by “random drift,” says Noel Heim, the lead author of the study. It demonstrates that larger animals have a tendency to fare better. In the course of the last 544 million years, the average size of marine creatures has increased 150-...

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