A hungry tiger was almost left with a ROARing headache – after nearly colliding into a pane of glass as it dived underwater for a slab of meat. (Photo by Caters News)

A publican serves a glass of stout to a donkey in the East End of London, 1960s. (Photo by Steve Lewis/Getty Images)

Painted glass Christmas and New Year decorations are pictured at the “Yolochka” (Christmas tree) factory, which has been producing glass decorations and toys for the festive season since 1848, in the town of Klin outside Moscow, Russia, November 24, 2016. (Photo by Maxim Zmeyev/Reuters)

A tourist poses on the glass-bottom bridge at Zhangjiajie Grand Canyon on August 20, 2016 in Zhangjiajie, Hunan Province of China. The Zhangjiajie Grand Canyon's glass-bottomed bridge welcame its trial operation on Saturday and about 8,000 tourists crowded to view the grand glass bridge. (Photo by VCG/VCG via Getty Images)

A cat wering glasses lies in a pet dryer at the “Pet Expo Championship” in Bangkok, Thailand on August 30, 2019. (Photo by Mladen Antonov/AFP Photo)

Thousands of species of amphibians are endangered and hundreds have already disappeared, but in recent years, a team of scientists and conservationists have re-discovered some of these “lost” species and uncovered previously unknown varieties. Here: Miniature glass frog. (Photo by Robin Moore)

A glassmaker forms molten glass next to a furnace at Cespedes factory in Olocuilta, El Salvador February 8, 2017. (Photo by Jose Cabezas/Reuters)

Police officers display their AI-powered smart glasses in Luoyang, Henan province, China on April 4, 2018. (Photo by Reuters/China Stringer Network)