Check Out This Footage Of 10,000 Sharks Swimming Off The Coast Of Florida

Those black dots are SHARKS. All approximately 6 foot 2. 

Footage was captured of the clan on the morning of February 12, showing an estimated 10,000 blacktip sharks travelling along the shores of Palm Beach in Florida. 

Dr Stephen Kajiura, a biologist at Florida Atlantic University, assisted in getting the image and is undergoing a project to find out why these Carcharhinus limbatus' are doing this, given the fact they're usually found much further south, in Ft. Lauderdale.

He predicts it's down to rising ocean temperatures.

Source.