Elephant herd enjoys the cool water in Botswana's Okavango Delta

herd elephant shallow water cool botswana okavango african bush elephant loxodonta africana pachyderm pachydermata proboscidea herbivore elephantidae big five ivory trunk tusk poaching target dangerous giant grey heavy grazer silent endangered intelligent largest living land mammal highly social juvenile adorable chobe bush wildlife travel calf animal nature wild africa young game safari wilderness conservation ears