Evidence of the typically human emotions, grief, parental love and joy, as well as the existence of complex social interactions and structures, are further indicators of the highly developed intelligence of whales and dolphins. In one example, despite the risk of dehydration, stranding and shark attack, a group of false killer whales floated for 3 days in the shallows of the straits of Florida, USA to protect an injured male. Such was their cohesion and reliance upon the group, individuals became agitated when rescuers tried to separate them, calming only when reunited.
