As the video begins, there is no obvious sign of danger as a man pokes a stick into the murky water. The waterway is steep and surrounded by overgrown grass that has been sun-dried. The man, who looks like a croc wrangler, is barefoot and only has a flimsy stick for defense. What begins to be a typical scene turns into a frantic splash of water as a 20-foot, boat-sized saltwater crocodile breaks through the water’s surface, either to attack or as a playful gesture. The crocodile is so sneaky that it would be nearly impossible to notice it before getting frighteningly close to the aquatic predator. The clip is even more impressive, as is the man’s composure when the crocodile gives no indication that it’s about to leap from the water. In fact, there are no hints that the animal is even present until the last minute! As the video unfolds, the crocodile walks in the usual side-to-side manner, following its caretaker, now holding a piece of meat. As apex predators, crocodiles see anything, including humans, as a suitable food source, so it is unclear whether it is interested in the meat or the man. The massive carnivore attempts to bite the stick, but the man quickly moves out of the way.

How Do Crocodiles Float?

Crocodile buoyancy is almost as important to their survival as their ability to move. This is accomplished by controlling their lungs’ position. They move their lungs around their torso like floats, using four sets of muscles. When the lungs are pulled back towards the tail, the animal’s center of buoyancy shifts backward, and it dives; when they are pushed towards the head, it rises; and when they are pushed to the side, it rolls.

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