Modern flamingos employ filter feeding and their feces are, as a result, rich in remains of microscopically-small aquatic prey. Very similar contents have been found in more than 150-million-year-old pterosaur droppings. This represents the first direct evidence of filter-feeding in Late Jurassic pterosaurs and demonstrates that their diet and feeding environment were similar to those of modern flamingos.
from Latest Science News -- ScienceDaily https://ift.tt/324ySEo
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