Marble effigy, head of Bishop Walter Kerr Hamilton, died 1869, Salisbury Cathedral, Salisbury, Wiltshire, England, United Kingdom, Europe

Chimpanzee (Pan troglodytes), Gombe Stream National Park, Lake Tanganyika, Tanzania, East Africa, Africa

Australian Aborigines

Horse being fed an apple, Oxfordshire, United Kingdom.

Great white shark with hand. (rr)

Bite of a piranha (Pygocentrus nattereri) in a leaf, southern Pantanal, Mato Grosso do Sul, Brazil, South America

Southern elephant seal (Mirounga leonina) tooth found on the beach at South Georgia in the Southern Ocean

Close up of African woman eating apple

Woman with sprinkles on lips

Shigellosis, Bacterial Dysentery, LM

Gloved hands of an orthodontist who inspects the teeth of an 8-year-old girl to correct the bad posture of the jaws and teeth with the installation of braces, France, Europe.

Young woman holding pill by her mouth.

Little girl running with a feather in her hand over the sandy beach, Punta Conejo, Baja California Sur, Mexico, America

Head of a mythical creature with an open mouth and a golden beard, facade relief on a city palace from the 17th century, Hoorn, Province of North Holland, Netherlands, Europe

Bornean Orangutan (Pongo pygmaeus), thoughtful-looking female, portrait

Bornean Orangutan (Pongo pygmaeus), thoughtful-looking female, portrait

Bornean Orangutan (Pongo pygmaeus), thoughtful-looking female, portrait

Carving the mouth of a wooden mask using wood carving tools, wooden mask carver, Bad Aussee, Styria, Austria, Europe

close up woman holding mirror

Orang-utan (Pongo pygmaeus) in Tanjung Puting national park, Central-Kalimantan, Borneo, Indonesia

A young Sri Lankan boy 'opens wide' as a doctor peers into his mouth, Kalmunai, Sri Lanka.

Closeup portrait of an orangutan, hand on cheek over mouth

Portrait of laughing girl with her hand over her mouth, Tahiti, French Polynesia, Pacific Islands

Girl dressed as ladybird with hand on mouth