![A veterinarian from the zoo of Besancon feeds \'Soa\', a female crowned sifaka, in Besancon, eastern France, Feb. 18, 2019. The crowned sifaka is a critically endangered species from Madagascar. There were only 6 females over 20 individuals living in 7 zoos worldwide end of 2018. (Photo/Agencies)](http://www.ecns.cn/hd/2019/02/19/79dca18174b6447d8e7b84fd7ddb0b70.jpg)
A veterinarian from the zoo of Besancon feeds 'Soa', a female crowned sifaka, in Besancon, eastern France, Feb. 18, 2019. The crowned sifaka is a critically endangered species from Madagascar. There were only 6 females over 20 individuals living in 7 zoos worldwide end of 2018. (Photo/Agencies)
![This picture taken on Feb. 18, 2019 at the zoo of Besancon, eastern France, shows \'Soa\', a female crowned sifaka born on December 11, 2018. The crowned sifaka is a critically endangered species from Madagascar. There were only 6 females over 20 individuals living in 7 zoos worldwide end of 2018. (Photo/Agencies)](http://www.ecns.cn/hd/2019/02/19/124fcaa39933460cbac826cac39a5266.jpg)
This picture taken on Feb. 18, 2019 at the zoo of Besancon, eastern France, shows 'Soa', a female crowned sifaka born on December 11, 2018. The crowned sifaka is a critically endangered species from Madagascar. There were only 6 females over 20 individuals living in 7 zoos worldwide end of 2018. (Photo/Agencies)
![A veterinarian from the zoo of Besancon feeds \'Soa\', a female crowned sifaka, in Besancon, eastern France, Feb. 18, 2019. The crowned sifaka is a critically endangered species from Madagascar. There were only 6 females over 20 individuals living in 7 zoos worldwide end of 2018. (Photo/Agencies)](http://www.ecns.cn/hd/2019/02/19/a2a21f1deca1402da62abb4e9d8358b0.jpg)
A veterinarian from the zoo of Besancon feeds 'Soa', a female crowned sifaka, in Besancon, eastern France, Feb. 18, 2019. The crowned sifaka is a critically endangered species from Madagascar. There were only 6 females over 20 individuals living in 7 zoos worldwide end of 2018. (Photo/Agencies)
![A veterinarian from the zoo of Besancon feeds \'Soa\', a female crowned sifaka, in Besancon, eastern France, Feb. 18, 2019. The crowned sifaka is a critically endangered species from Madagascar. There were only 6 females over 20 individuals living in 7 zoos worldwide end of 2018. (Photo/Agencies)](http://www.ecns.cn/hd/2019/02/19/0adf1e56835b48419466f9944522b23a.jpg)
A veterinarian from the zoo of Besancon feeds 'Soa', a female crowned sifaka, in Besancon, eastern France, Feb. 18, 2019. The crowned sifaka is a critically endangered species from Madagascar. There were only 6 females over 20 individuals living in 7 zoos worldwide end of 2018. (Photo/Agencies)