African elephant (Loxodonta africana) mudbathing, Addo National Park, South Africa, Africa

Children smeared with mud, mud bath in the Sterntaler Filze, moorland, peat fields in Bad Feilnbach, Upper Bavaria, Bavaria, Germany, Europe

Men's muddy feet, barefoot park, Germany

Children smeared with mud, mud bath in the Sterntaler Filze, moorland, peat fields in Bad Feilnbach, Upper Bavaria, Bavaria, Germany, Europe

African elephant (Loxodonta africana) splashing mud at a waterhole, animal portrait, Nxai Pan National Park, Ngamiland, Botswana, Africa

Young woman rubbing skin-soothing mud on herself, Dead Sea, West Bank, Israel, Middle East

Hippo (Hippopotamus amphibius) bathing in mud, animal portrait, Queen Elisabeth National Park, Uganda, Africa

Warthog (Phacochoerus aethiopicus) after a mud bath, running with tail raised, Moremi Wildlife Reserve, Ngamiland, Botswana, Africa

African elephants (Loxodonta africana), sprayed with mud at a waterhole, Nxai Pan National Park, Ngamiland, Botswana, Africa

Warthog (Phacochoerus aethiopicus) with Red-billed oxpeckers (Buphagus erythrorhynchus) at the mud bath, Moremi Wildlife Reserve, Ngamiland, Botswana, Africa