One leading theory on the origins of life on Earth proposes that simple chemical molecules gradually became more complex, ultimately forming protocells—primitive, non-living structures that were ...

The weird way dolphins are peeing in the Amazon River is baffling scientists - Mysterious behaviour may be form of ...

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

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Specifically, the male dolphins rolled over onto their backs, displayed their male members, and launched a stream of urine as high as 3 feet into the air. This usually occurred when other males were ...