Martin Dohrn / Herd of giraffes (Giraffa camelopardalis) resting at night, Masai Mara, Kenya. Image taken at night using thermal camera technology, with no artificial light.

Mary McDonald / Masai giraffe {Giraffa camelopardalis} mother nuzzling baby, Lower Masai Mara GR, Kenya

Staffan Widstrand / Southern Giraffe (Giraffa camelopardalis) two, with one in foreground, Zimanga Private Nature Reserve, KwaZulu Natal, South Africa

Bence Mate / Group of four Giraffes (Giraffa camelopardalis) Mkuze, South Africa

Ingo Arndt / Masai giraffe (Giraffa camelopardalis tippelskirchi) males fighting, Masai Mara National Reserve, Kenya. Sequence 3 of 3

Neil Aldridge / Giraffe (Giraffa camelopardalis) feeding on woolly caper (Capparis tomentosa). Chobe National Park, Botswana.

Denis-Huot / Masai giraffe (Giraffa camelopardalis tippelskirchi) baby standing below female, Maasai Mara Game Reserve, Kenya

Denis-Huot / Masai giraffe (Giraffa camelopardalis tippelskirchi) two silhouetted at sunrise, Maasai Mara Game Reserve, Kenya.

David Pattyn / Reticulated giraffe (Giraffa camelopardalis reticulata) young standing close to its mother, Samburu Game Reserve, Kenya, Africa, August.

David Pattyn / Reticulated giraffe (Giraffa camelopardalis reticulata) mother grooming baby, Samburu Game Reserve, Kenya, Africa, August.

Edwin Giesbers / Rothschild's giraffe (Giraffa camelopardalis rothschildi) close up of young calf skin pattern, captive

Edwin Giesbers / Rothschild's giraffe (Giraffa camelopardalis rothschildi) two curious giraffes looking down, captive