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

Scientists perplexed by strange urination routine of Amazon river dolphin - Mysterious behaviour may be form of communication ...

How big is the issue? With rising energy bills and the cost of food increasing, food poverty is now a reality for many. Some are forced to choose between heating and eating, and some parents are ...

Where a river begins Features of a river's upper course How waterfalls, gorges and other physical features are formed Wildlife you might find near or in the upper course This resource is suitable ...