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The first known filter feeder is a large shrimp-like creature called Tamisiocaris borealis. The feather-like structures on its head were used to rake plankton from the sea.

Photo

The First Filter Feeder

August 2015

A bright-green sea slug with a black background.

Audio

Sea Slugs: One Species at a Time

July 2011

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A screenshot from the video showing a Palauan primitive cave eel.

Video

Video of the Palauan primitive cave eel (Protanguilla palau)

August 2011

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