Llama, Machu Picchu ruins of the Inca citadel discovered in 1911 in Peru, South America

Bleating tree frog (Litoria dentata), Hopkins Creek, New South Wales, Australia, Pacific

Juvenile bleating tree frog (Litoria dentata), Hopkins Creek, New South Wales, Australia, Pacific

Mouflon (Ovis ammon musimon), flehmen response during mating season