1336-1103 - A deer stands close to the camera, its ears perked up, amidst the lush greenery of a forest in Nara, Honshu, Japan, Asia

1174-8798 - Hyena cubs, Crocuta crocuta, walk out of their den site, ears perked up in the sunlight, Sabi Sands, Greater Kruger National Park, South Africa

1174-8807 - A wild dog, Lycaon pictus, lies on the sand of the river bank, looking out of frame over shoulder, ears perked, Sabi Sands, Greater Kruger National Park, South Africa

1116-42815 - Livestock - A young colt standing at attention on a green pasture in late afternoon light / Douglas County, Wisconsin, USA.

1174-5049 - The side profile of the head of a male nyala, Tragelaphus angasii, ears up and perked, looking away, Londolozi Game Reserve, Sabi Sands, Greater Kruger National Park, South Africa

1174-5055 - A wild dog, Lycaon pictus, lies on the ground, looking away, bloody face, ears perked, Londolozi Game Reserve, Sabi Sands, Greater Kruger National Park, South Africa

1174-4972 - A leopard, Panthera pardus, walks across a clearing, tail curled in the air, in the foreground a male impala with horns faces the leopard with ears perked, Aepyceros melampus, Londolozi Game Reserve, Sabi Sands, Greater Kruger National Park, South Africa

832-378998 - European rabbit (Oryctolagus cuniculus) with ears perked up, portrait, Lower Austria, Austria, Europe