A man wearing a “Pinhead” mask walks through the grounds of St Mary's Church, Whitby, during the Whitby Gothic festival taking place this weekend, on April 27, 2014. The twice yearly event attracts Goths from across the UK and beyond to the historic fishing town and is a great boost to the local economy. (Photo by Anna Gowthorpe/PA Wire)

Sophie Turner (L) attends HBO's Official 2019 Emmy After Party on September 22, 2019 in Los Angeles, California. (Photo by Jeff Kravitz/FilmMagic for HBO)

British actress and humanitarian Audrey Hepburn, 1955. Jumpology. (Photo by Philippe Halsman)

A spotless GWR (Great Western Railway) locomotive, the “Royal Sovereign” waiting to carry Queen Victoria's coffin. (Photo by Hulton Archive/Getty Images). 28th January 1901

Sunday night, Lauren Watts searches for her dog in Mayflower, Arkansas., after a tornado struck the town. (Photo by Benjamin Krain/The Arkansas Democrat-Gazette)

American singer-songwriter Katy Perry and fiancé Orlando Bloom take a leap of faith into the Mediterranean Sea in the second decade of August 2024. (Photo by katyperry/Instagram)

Bella Hadid and Gigi Hadid prepares backstage for Savage X Fenty Show Presented By Amazon Prime Video – Backstage at Barclays Center on September 10, 2019 in Brooklyn, New York. (Photo by Ilya S. Savenok/Getty Images for Savage X Fenty Show Presented by Amazon Prime Video)

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)