How Earth's First, Unkillable Animals Saved the World - S3.E23
They have survived every catastrophe and every mass extinction event that nature has thrown at them. And by being the little, filter-feeding, water-cleaning creatures that they are, sponges may have saved the world.
How Earth's First, Unkillable Animals Saved the World - S3.E23
July 30, 2019
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