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Scientists find the first plant-eating shark — but it still likes to hunt
zmescience.com | 2018-Sept-06
Jaws would’ve been a heck of a lot less terrifying had it stared the bonnethead shark. According to a recent study, this shark enjoys a diet of bony fish, crabs, snails, and shrimp --- but also seagrass. This makes it the first omnivorous shark known.
For some time, biologists have been observing that bonnetheads (Sphyrna tiburo) ingest seagrass in addition to their favorite crustaceans and shellfish. However, because their stomach is almost identical to other meat-eating sharks, being highly specialized for a diet revolving around protein, scientists had always assumed the seagrass was consumed by accident.
But it seems like the bonnetheads really like seagrass, which they ingest for its nutritional value. This was proven by Samantha Leigh at the University of California Irvine and her colleagues...
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