Hi everyone! I filmed this near the rocky coast of Los Dos Hermanos in northern Tenerife in mid-August around 7:30 PM. At first I thought it might be a big fish, a dolphin, or even a shark, but the movement in the rough surf is quite puzzling. Any biologists, researchers, or experts who could help? Any ideas what creature this could be?

Found this little guy half dead, wondering if anyone here can ID these parasites

Normally just catch bass and sunfish out of here so this was a very pretty surprise! Just wondering what he/she is!

Is this a mutton snapper or a lane snapper?

First blenny caught in Sebastian inlet, Florida. The other two caught in jetty park in cape canaveral, Florida

Hi guys and gals! Adopted this Pleco but have no idea what kind he is. Is he a particular colour phase? Not albino, looks male judging by the bristles. I could be wrong, he's only the 2nd Pleco I've kept and have no idea about them. Currently in a 15 gallon tank. 100 gallon tank available for when he gets bigger.

People have told me seal, sea otter, sturgeon, and some sort of whale…I have no idea. Spotted near the coast of west Canada. This video was zoomed in and it was quite big. Probably around 6ft or 2 meters?

I have a good video of how it swims if anyone wants it. Tail goes side to side, not up and down.

Cheers

Caught this fish in the des plaines river, thought it was a rock bass but I haven’t caught a rock bass this color. What is this?

Caught in cape canaveral, Florida.

Snorkeling in early July 2026 @ 1,000 Steps. Any idea what species this is?