Can a shark survive on a diet of seaweed alone? 0 6

However, as early as 2007, zoologists discovered sea grass in the stomach of a hammerhead shark, and it did not appear to have accidentally ingested it along with crabs, small fish, and shrimp that typically make up a shark's diet.

Researchers from the University of California, Irvine, conducted an experiment in which several sharks were placed on a diet consisting of 90% sea grass and 10% squid.

Despite such an almost vegetarian diet, the fish were healthy and even gained weight, breaking down the plant food and extracting the necessary nutrients from it. This confirms that sharks do indeed intentionally consume grass in shallow waters, where they hunt a variety of underwater creatures, and their ability to digest vegetation is apparently aided by specific intestinal microflora.