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How Sponges Spurred The Evolution Of Complex Life: Study

Scientists believe sponges helped oxygenate the deep ocean, making it an environment where complex, oxygen-using animals could evolve.

http://www.firstcoastnews.com/video/3323908304001/1/How-Sponges-Spurred-The-Evolution-Of-Complex-Life-Study http://cdn.newslook.com/64/648781cac78039c0af8a4505bdef95f6/images/frame_ext.jpg How Sponges Spurred The Evolution Of Complex Life: Study Scientists believe sponges helped oxygenate the deep ocean, making it an environment where complex, oxygen-using animals could evolve. newslookWorldscience 01:29

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