Espen Bergersen / Aerial shot of a female Humpback whale (Megaptera novaeangliae) and calf surrounded by Killer whales (Orcinus orca), mother hits sideways with her tail fluke to drive Killer whales away, Skjervoy, Tro...
Franco Banfi / Sperm whale (Physeter macrocephalus) young male trying to copulate with a female. The calf of the female was in the way so the male is trying to chase it away. Dominica.
Paul Williams / Moose (Alces alces) female with twin calves, Baxter State Park, Maine, USA, June.
Claudio Contreras / Grey whale (Eschrichtius robustus) calf, San Ignacio Lagoon, El Vizcaino Biosphere Reserve, Baja California, Mexico, February
David Fleetham / Humpback whale (Megaptera novaeangliae), mother and calf swimming just below surface in front of the West Maui Mountains. South of Lahaina, West Maui, Hawaii.
Tony Wu / Humpback whale (Megaptera novaeangliae australis) female, stationary with calf heading to surface for breath of air. Vava'u, Tonga, South Pacific.
Denis-Huot / Masai giraffe (Giraffa camelopardalis tippelskirchi), female and calf at sunset, with Abdim's storks in flight, Masai-Mara Game Reserve, Kenya
Klein & Hubert / Limousin cow and bull, Auvergne, France.
Tony Wu / Humpback whale (Megaptera novaeangliae) female breaching together with her male calf. The calf had a large wound on his left peduncle area, one that appeared to be the result of a large bite, Vava'u,...
Neil Aldridge / White rhinoceros (Ceratotherium simum) calf keeping close to its mother on Kariega Game Reserve, South Africa.
Neil Aldridge / African elephant (Loxodonta africana) baby looking out from the safety of beneath its mother's legs, Northern Tuli Game Reserve, Botswana. Vulnerable species. The African elephant is classified as vul...
Yashpal Rathore / Asiatic elephant (Elephas maximus), herd with few days old calf crossing forest path. Jim Corbett National Park, India.
Tony Wu / Humpback whale (Megaptera novaeangliae) male calf with his mother. Vava'u, Tonga. South Pacific.
Tony Wu / Humpback whales (Megaptera novaeangliae) in a heat run, with six males competing for the attention of a female that already has a calf. Vava'u, Kingdom of Tonga
Tony Wu / Humpback whale (Megaptera novaeangliae) calf 'Tahafa' male with injured pectoral fin and scarred body, with mother. Vava'u, Tonga, Pacific Ocean.
Tony Wu / Humpback whale (Megaptera novaeangliae), fluke of female with male calf playing below, Vava'u, Tonga, Pacific Ocean.
Tony Wu / Humpback whale (Megaptera novaeangliae) calf nuzzling its mother, Vava'u, Kingdom of Tonga, Pacific Ocean.
Tony Wu / Humpback whale (Megaptera novaeangliae) and her calf pursued by males during heat run. Vava'u, Tonga, Pacific Ocean.
Tony Wu / Humpback whale calf (Megaptera novaeangliae) resting under the chin of its mother. Vava'u, Tonga, Pacific Ocean.
Tony Wu / Humpback whale (Megaptera novaeangliae) male calf with his resting mother. Vava'u, Kingdom of Tonga. Pacific Ocean.
Tony Wu / Humpback whale (Megaptera novaeangliae) female with calf, pursued by males during heat run. Vava'u, Kingdom of Tonga. Pacific Ocean.
Andy Rouse / African Elephant (Loxodonta africana) mother and calf in rain, wallowing in mud. Maasai Mara, Kenya, Africa. September.
Wim van den Heever / Bottlenose Dolphin (Tursiops truncates) mother and calf porpoising during annual Sardine run, Port St Johns, South Africa, June.
David Pattyn / Reticulated giraffe (Giraffa camelopardalis reticulata) young standing close to its mother, Samburu Game Reserve, Kenya, Africa, August.
Tony Wu / Grey whale (Eschrichtius robustus) calf at ocean surface, with its mother visible, Magdalena Bay, Baja California, Mexico.
Wim van den Heever / Black rhinoceros (Diceros bicornis) mother and calf having a drink at night with perfect reflections. Etosha National Park, Namibia. Taken with infrared camera.
Wim van den Heever / Plains zebra (Equus quagga) group of four including foal at sunset, Savuti Marsh, Botswana.
Eric Baccega / African elephant (Loxodonta africana) herd with calves, walking in procession to a waterhole in sand storm, Etosha National Park, Namibia, Africa
Denis-Huot / Masai giraffe (Giraffa camelopardalis tippelskirchi) baby standing below female, Maasai Mara Game Reserve, Kenya
Roland Seitre / Dromedary camel (Camelus dromedarius) calf Oriental Great Erg sand dunes, Jbil National Park, Tunisia.
Ann & Steve Toon / White rhinoceros calf (Ceratotherium simum), Mkhuze Game Reserve, KwaZulu-Natal, South Africa, May