If you are tempted to escape to Florida for a holiday now might not be a good time.
But if you do hit the sunny beaches, you may want to avoid going for a swim.
That's because tens of thousands of sharks are migrating in huge swarms, and it's happening just off the coast.
Sharks off Palm Beach, FL
Fantastic aerial survey flight this morning. Thousands of sharks off Palm Beach and up to Jupiter. Very few sharks spotted from Miami to Palm Beach. Really looking forward to instrumenting some sharks with transmitters tomorrow. Original 4K video uploaded for viewing - be sure to watch in HD.Posted by FAU Shark Migration on Friday, February 12, 2016
Florida Atlantic University biological sciences professor Stephen Kajiura took video from the air of blacktip sharks invading the waters of Palm Beach, on Florida's Atlantic coast.
He has been monitoring their movement since January 15. But he decided to get footage from 5,000ft in the air.
Kajiura told WPEC: "There are literally tens of thousands of sharks a stone's throw away from our shoreline.
"You could throw a pebble and literally strike a shark. They are that close."
Blacktips are the most common species in that part of Florida and are behind the majority of shark bites.
The sharks have arrived! Thousands of sharks spotted off Palm Beach this morning during the aerial survey flight. Looking forward to fishing and tagging this weekend. #sharkmigration #blacktip #shark @colganfoundation A photo posted by Sharkmigration (@sharkmigration) on Jan 29, 2016 at 11:19am PST
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However, according to the National Oceanic and Atmospheric Administration, there hasn't been a fatal attack yet.
They are named by the black markings on the tips of their fins and are common in the warm Atlantic waters between South Carolina and Texas.
Every winterm, during their mating season, they move to find warmer parts of the ocean.
They feed on fish, stingrays and squids.
Blacktips have also been known to follow fishing boats and feed on culled catches.
- Daily Mail