What could this possibly be? 😳

May be a giant sturgeon

33 ft long and 880 pounds Anaconda discovered at a construction site in Brazil.

An underwater encounter with the northern green anaconda, the largest and heaviest snake yet known in the world. 😳

I believe you get Alligator Gar in the Missouri. They can get up to like 10ft 300lb so could be one of them. Could also be a big paddlefish or a big Catfish.

Massive avalanche rolling down a valley and dumping into a small river in the Kunlun Mountains, Qinghai, China.

its a giant moodeng

That's possibly the most incredible thing i have ever seen!!

A very close encounter with a huge Green Anaconda in the water

So the Loch Ness Monster is real..??!!🙀

I would guess sturgeon or bullshark Shark depending on how far it is from the ocean. More than likely a sturgeon since a shark fin never broke the surface.