A macaque is seen at the National Zoological Park in New Delhi, India, Feb. 12, 2020. (Photos: Xinhua)

Rhinoceros are seen at the National Zoological Park in New Delhi, India, Feb. 12, 2020.

A monkey sips juice from a packet at the National Zoological Park in New Delhi, India, Feb. 12, 2020.

A lion is seen at the National Zoological Park in New Delhi, India, Feb. 12, 2020.