article_snippet: Exerts believe sharks were following shoals of fish and migrating to warmer waters after a winter in the south.
article_snippet: Marine biologist and film maker Ellen Husain told MailOnline that sharks are likely to have been spinners, found in the Gulf of Mexico, and known for migrating north in large numbers up the Florida coast at this time of year.
article_snippet: Feeding frenzy: Exerts believe the predators were following shoals of fish and migrating to warmer waters after a winter in the south .
highlights_snippet: Experts say the predators were migrating north and following shoals of fish .