Watch: Massive Pod Of Rays In Tampa Bay
The large number of Cownose rays happens every year in the same spot, but does not last long. They gather together and once the group hits a certain size, they…

LONDON – APRIL 07: A Scuba diver trys to touch a Cownose stingray at the Sea-Life London Aquarium on April 7, 2009 in London, England. The newly refurbished aquarium costing 5 million GBP houses thousands of creatures representing 500 species including the world’s largest collection of Cownose rays and over 10 species of shark. Housed in 2 million litres of water with 65 displays the Aquarium is also a leading centre of marine conservation in the UK. (Photo by Peter Macdiarmid/Getty Images)
Peter Macdiarmid/Getty ImagesThe large number of Cownose rays happens every year in the same spot, but does not last long. They gather together and once the group hits a certain size, they migrate. A group of rays is called a fever.