PETER CHADWICK / SCIENCE PHOTO LIBRARY PETER CHADWICK / SCIENCE PHOTO LIBRARY
African buffaloes (Syncerus caffer). Bull (male) African buffalo checking the oestrus state of a cow (female). Cows, which become sexually mature at 5 years of age, are in oestrus (heat) for between 1 to 6 days of their 23 day oestrus cycle. They are able to mate all year round, although the peak of the mating season is timed so calves are born at the beginning of the wet season. Cows give birth to a single calf after a gestation period of just over 11 months. African buffaloes are found on the savannahs and woodlands of sub-Saharan Africa. They feed on grasses and other vegetation. Both sexes have low, curved horns. Photographed in Vaalbos, South Africa.
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