Ecology
In addition to their striking, superficial similarity to contemporary shrimp, Waptia fieldensis were also very shrimp-like in their habits. They were bottom-dwelling (nektobenthic) deposit feeders. The lack of strong feeding appendages indicates that they were more likely to feed by sifting through the sea bottom for edible organic particles. Their tails and the feather-like filaments on their posterior thoracic somites also imply that they were active swimmers.
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