A photographer has captured the Amur leopard cubs playing with mum, with them being noticeably bigger in size.

Two new female snow leopard cubs have made their debut at the Metro Richmond Zoo in Virginia. Sasha and Kira were born to parents Elsa and Nitro on 28 April after a 3-month gestation period.

The cubs, one male and one female ... The Bronx Zoo has had 80 snow leopard births, more than any other zoo in North America, and was the first zoo in the United States to exhibit the big cats ...