Mesmerizing video shows manta rays dancing in graceful circles while dining in Florida

Looks like Tampa Bay has a fever.

Not the cold sweats kind, but the one that includes a large group of manta rays swimming in a giant circle in the middle of the ocean.

Tampa, Florida resident Cathy Suglia was working out on her apartment balcony when she noticed and then captured a video last week of the captivating scene, according to Storyful.

These boneless fish —relatives to sharks— are the largest type of ray, reaching up to 22 feet wide and 4,400 pounds, according to National Geographic added: Kids.

But why do they swim in circles in large groups (fevers) with up to 10,000 individuals at a time?

Researchers weren’t too sure until drones started making their way into science, capturing wildlife in their natural state without the presence of boats nearby.

The circling behavior is the manta ray’s way of dining with a friend, Andrea Marshall, director of the Marine Megafauna Foundation, told Nat Geo

The fish “stack” onto each other from behind in order to organize their feeding, Marshall said.

“The one in front gets the most plankton via filter feeding with its giant gaping mouth, but they switch places as they swim so each gets a turn in the leader position,” the magazine said.

Marshall said these fevers are interesting because the participants aren’t always family groups, suggesting they are social creatures.

Manta rays are known to play together, copy each other and swim close to humans out of curiosity, according to ScienceMagazine.

One study showed they also form friendships that can last for weeks or even months, a paper published last year in the journal Behavioral Ecology and Sociobiology said.

The researchers learned that female manta rays were more likely to form secure relationships with one another than males, who preferred to avoid other males, the study said.