Mark MacEwen / Broad snouted caiman (Caiman latirostris) baby in mothers mouth being carried from nest, Sante Fe, Argentina, February

Hiroya Minakuchi / African Elephant (Loxodonta africana) mothers and calves, Amboseli National Park, Kenya

Suzi Eszterhas / Ring tailed lemur (Lemur catta) mothers with two-week babies. Berenty Private Reserve, Madagascar

Cyril Ruoso / Woman with baby collecting Madagascar periwinkle (Catharanthus roseus) flowers and leaves, used in herbal medicine, and containing molecules which are used in the treatment of leukemia cancer. Berenty...

Anup Shah / Long-tailed macaque (Macaca fascicularis) baby aged 2-4 weeks clinging to its mothers back. Bako National Park, Sarawak, Borneo, Malaysia.

Denis-Huot,Denis-Huot / Lion(Panthera leo) cub playing with its mothers tail, Masai-Mara Game Reserve, Kenya. Vulnerable species.

Fiona Rogers / Celebes / Black crested macaque (Macaca nigra) baby less than 1 month old in mothers arms, Tangkoko National Park, Sulawesi, Indonesia.

Ann & Steve Toon / Cape fox (Vulpes chama) cub licking its mothers face, Kgalagadi Transfrontier Park, Northern Cape, South Africa

Edwin Giesbers / Young Western lowland gorilla (Gorilla gorilla gorilla) sleeping in mothers arms. Endangered species. Captive; Apenheul zoo; the Netherlands.

Edwin Giesbers / Young Hamadryas baboon (Papio hamadryas) perched on mothers back. Captive. Apenheul zoo; the Netherlands.

Edwin Giesbers / Young Hamadryas baboon (Papio hamadryas) perching on mothers back. Captive. Apenheul zoo; the Netherlands.

Edwin Giesbers / Young Hamadryas baboon (Papio hamadryas) perched on mothers back. Captive. Apenheul zoo; the Netherlands.