A giraffe is seen in its enclosure at the Bangladesh National Zoo in Dhaka, capital of Bangladesh, Nov. 1, 2020. Bangladesh National Zoo in the Mirpur section of capital Dhaka reopened to public Sunday with new safety guidelines after some eight months of shutdown due to the COVID-19 pandemic. (Xinhua)

Visitors are seen at the Bangladesh National Zoo in Dhaka, capital of Bangladesh, Nov. 1, 2020. Bangladesh National Zoo in the Mirpur section of capital Dhaka reopened to public Sunday with new safety guidelines after some eight months of shutdown due to the COVID-19 pandemic. (Xinhua)

Visitors see elephant at the Bangladesh National Zoo in Dhaka, capital of Bangladesh, Nov. 1, 2020. Bangladesh National Zoo in the Mirpur section of capital Dhaka reopened to public Sunday with new safety guidelines after some eight months of shutdown due to the COVID-19 pandemic. (Xinhua)

Deer are seen in an enclosure at the Bangladesh National Zoo in Dhaka, capital of Bangladesh, Nov. 1, 2020. Bangladesh National Zoo in the Mirpur section of capital Dhaka reopened to public Sunday with new safety guidelines after some eight months of shutdown due to the COVID-19 pandemic. (Xinhua)

Photo taken on Nov. 1, 2020 shows people lining up to enter Bangladesh National Zoo in Dhaka, capital of Bangladesh. Bangladesh National Zoo in the Mirpur section of capital Dhaka reopened to public Sunday with new safety guidelines after some eight months of shutdown due to the COVID-19 pandemic. (Xinhua)

A child feeds deer at the Bangladesh National Zoo in Dhaka, capital of Bangladesh, Nov. 1, 2020. Bangladesh National Zoo in the Mirpur section of capital Dhaka reopened to public Sunday with new safety guidelines after some eight months of shutdown due to the COVID-19 pandemic. (Xinhua)