An Asian lion stands in his living area in The Biblical Zoo in Jerusalem which is closed due to the coronavirus disease (COVID-19) lockdown, January 31, 2021. Peering through enclosure windows, they were a popular source of entertainment at Jerusalem's Biblical Zoo. REUTERS/Ammar Awad

Zoo keeperswalk with Asian elephants in The Biblical Zoo in Jerusalem, which is closed due to the coronavirus disease (COVID-19) lockdown, January 31, 2021. With no visitors around, the animals must make do with interacting with their keepers, who are busy feeding and tending to kangaroos, zebras and elephants. REUTERS/Ammar Awad

A South African giraffe walks in her living area in The Biblical Zoo in Jerusalem, which is closed due to the coronavirus disease (COVID-19) lockdown, January 31, 2021. A sprawling site in Jerusalem, the zoo contains a wide variety of animals but gives pride of place to species mentioned in the bible. REUTERS/Ammar Awad

A zookeeper feeds animals as a Persian fallow deer stands by his vehicle in The Biblical Zoo in Jerusalem, which is closed due to the coronavirus disease (COVID-19) lockdown, January 31, 2021. REUTERS/Ammar Awad

Pigeons stand on a visitor's deck in The Biblical Zoo in Jerusalem, which is closed due to the coronavirus disease (COVID-19) lockdown, January 31, 2021. REUTERS/Ammar Awad

A zookeeper touches a Persian fallow deer in The Biblical Zoo in Jerusalem, which is closed due to the coronavirus disease (COVID-19) lockdown, January 31, 2021. REUTERS/Ammar Awad