Two three-month-old female white Bengal tiger cubs play with a zoo keeper in their enclosure at the Buenos Aires' Zoo, in Argentina, on April 17, 2014. Captive white Bengal tiger Cloe, gave birth to three cubs – two females and one male – on January 14, 2014. (Photo by Juan Mabromata/AFP Photo)

A male sea lion Leo writes the word of tiger in Chinese character at a New Year's attraction to celebrate the Year of the Tiger at the Hakkeijima Sea Paradise aquarium in Yokohama, suburban Tokyo on Monday, January 3, 2022. The calligraphy attraction by the sea lion will be carried through January 31. (Photo by Yoshio Tsunoda/AFLO/Rex Features/Shutterstock)

These zoo animals take on an altogether more sinister look after posing for a set of moody black and white portraits. Alex Teuscher has brought out the dark side in a range of exotic creatures with his artistic project which took two years to complete. Photo: White tiger. (Photo by Alex Teuscher/BNPS)

Fans cheer in the stands ahead of the CFL's 102nd Grey Cup football championship between the Calgary Stampeders and the Hamilton Tiger Cats in Vancouver, British Columbia, November 30, 2014. (Photo by Todd Korol/Reuters)

A baby rhesus macaque (Macaca mulatta) looks up as it plays with a tiger cub at a zoo in Hefei, Anhui province, August 2, 2012. (Photo by Jianan Yu/Reuters)

A Sumatran Tiger tears apart a wrapped Christmas present at Taronga Zoo on December 21, 2011 in Sydney, Australia. Animals received Christmas themed enrichment foods as part of the Zoo's regular program to encourage the animals to forage for food and help improve hunting abilities. (Photo by Brendon Thorne/Getty Images)

Military staff members of the German Bundeswehr check an Eurocopter Tiger military attack helicopter at the Eurocopter plant on March 8, 2012 in Donauworth, Germany. EADS, the parent company of Eurocopter as well as airplane manufacturer Airbus, is scheduled to announce financial results for 2011 today. (Photo by Johannes Simon/Getty Images)

A zoo performer smiles as he puts his head between the jaws of a crocodile during a performance for tourists at the Sriracha Tiger Zoo, in Chonburi province, east of Bangkok,Thailand, June 7, 2016. (Photo by Chaiwat Subprasom/Reuters)