Notes on the breeding of black rhinoceroses Diceros bicornis at Kobe Zoo

Gestation period. 462 days, Kobe 1965, male

Gestation period. 465 days, Kobe 1963, male

Male ?Bobby' born 16 Nov 1963 weighed after 38 days, 24 Dec 1963, 80.5 kg after 61 days, 16 Jan 1964, 118.7 kg after 94 days, 18 Feb 1964, 153.0 kg

Two calves have been born, male Bobby on 16 November [no year] and a male Rock on 2 Nov 1965.

Kobe Zoo. Before the rhinos mate they spar together for about 30-40 minutes. Copulation lasts for as long as 40 minutes.