Two male Grévy's zebras were born at Zurich zoo at the beginning of October, while a third birth of the highly endangered species is expected. +Get the most important news from Switzerland in your inbox This breeding success is important for the protection of this critically endangered species, Zurich zoo said on Tuesday. The first calf was born on the night of October 4, after a gestation period of 13 months. Two days later, the second pregnant mare gave birth to her offspring. A third birth is expected in the next few days, as the previous two went off without a hitch. The father of all three is the stallion Rashidi, who arrived at the zoo in the summer of 2024 from Lisbon. After a week and a half of acclimatisation in the quiet area of the stable, the new arrivals are exploring parts of the Lewa savannah that are visible to the public for the first time. Of the three existing species - plains zebra, mountain zebra and Grévy's zebra - the latter is the largest and rarest. Its ...