Amazon River Dolphins could communicate using urine in the river air

The male Amazon River dolphins are recorded by rolling upside down and firing urine flow in the air. Other men usually look for urine when they return to water, as if they were not strange enough. Probably, land mammals receive social clues in the same way as using scent marking.

Clariana Araujo One The Setasian Research Group in Ontario, Canada, and her colleagues recorded abnormal actions while studying the Dolphin of the Amazon River (INIA GEOFFRENSIS), Or Botos,