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)

Marialuisa Tadeis sculpture is very large compared to a life size octopus. The sculptures are made of steel and concrete. They are then turned into a mosaic using hand cut glass. The texture is bumpy because of the mosaic but is smooth on the glass. The main idea behind the sculpture is to explore spiritual and symbolic representation.

A dog sits in a plastic basin filled with water in Taipei, Taiwan, 05 May 2018. Betel nut seller Mr Luo, the dog's owner, said he puts his dog Ah Dai (Stupid Guy) in the water-filled basin whenever the weather get hot. Luo has a dozen pairs of glasses for Ah Dai, so the dog wears different glasses every day and many tourists take photos of Ah Dai. (Photo by David Chang/EPA/EFE)

A woman lies to pose for her souvenir picture on the glass sightseeing platform on Shilin Gorge in Beijing, China, May 27, 2016. (Photo by Kim Kyung-Hoon/Reuters)

A worker heats a glass cat-shape ornament at the Silverado manufacture of hand-blown Christmas ornaments in town of Jozefow outside Warsaw December 2, 2014. (Photo by Kacper Pempel/Reuters)

Actress Marilyn Monroe poses for a portrait in a bathing suit and high heels with a bottle of Coca-Cola in a glass on a table behind her in circa 1953. (Photo by Michael Ochs Archives/Getty Images)