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Scientists studying Amazon river dolphins in Brazil have observed males spraying urine into the air, a ritual for communication.

Earth is full of baffling mysteries that defy science. From disappearing rivers to glowing lights in the sky, these unsolved phenomena will leave you questioning reality!

Browse 1,100+ river bed underwater stock videos and clips available to use in your projects, or start a new search to explore more stock footage and b-roll video clips. Side view tracking shot of a ...

Researchers say they have made a startling discovery in the Amazon River. But their evidence wasn’t collected from the water—it could be seen from shore. After around 219 hours of observations ...

What’s a NERF Fortnite Gun doing at the bottom of the river?! While scuba diving, I stumbled upon this unexpected find—along ...

Our study shows that while aerial urination may be rare, or rarely observed, in cetaceans, it is relatively common in botos.” ...

Researchers say they have made a startling discovery in the Amazon River. But their evidence wasn’t collected from the water—it could be seen from shore. After around 219 hours of observations, they ...

The Amazon river is the largest drainage system in the world in terms of water volume and its drainage basin. The 6,400 kilometer (4,000 mile) river flows from the Andes Mountains of Peru ...

On this River Treasure hunt, as I was diving, I found SO MUCH TREASURE. Honestly, this was one of my best dives yet. I found a silver ring, beaded necklace, bluetooth speaker, slingshot, Oakley ...

Scientists suggest that the bristles on the dolphins' snouts help them 'decode' messages in other dolphins' urine.