The primitive whale Mammalodon colliveri might have sucked up prey from seafloor mud, suggesting the origin of today's giant filter-feeding whales. Credit: Brian Choo, Museum VictoriaFrom Live Science:
The origins of the largest animals in the world, the baleen whales, might be rooted in the mud, which they potentially sucked up like vacuum cleaners, analysis of a bizarre extinct dwarf whale now suggests.
The baleen whales include the largest animal to have ever lived, the blue whale. Instead of teeth, they use baleen to feed — plates with frayed edges in the upper jaw that filter seafood from the water.
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