Gaza authorities say two newborn lion cubs just unveiled by Hamas as prized additions in a zoo they run have died. Mohammad Abdel-Rahman, the acting manager of the Beit Lahiya zoo in northern Gaza, said Thursday the cubs died of an unspecified illness. He said the zoo's staff was unable to save them because they lacked experience in caring for newborn cubs. Photo: Two-day-old lion cubs Fajr and Sjel are fed at a zoo in the northern Gaza Strip town of Beit Lahia, on November 19, 2013. (Photo by Mohammed Abed/AFP Photo)

In this Sunday, April 28, 2013 photograph, people watch as Indian Sailendra Nath Roy attempts to cross Teesta river suspended from a zip wire attached to his ponytail moments before his death in Siliguri, West Bengal state, India. Roy who was named a Guinness World Record holder in 2011 for travelling the farthest distance on a zip wire using hair died during the stunt Sunday when he suffered a heart attack. (Photo by AP Photo)

This is the remarkable moment a group of skydivers performed a world record breaking feat in honour of their friend who died while skydiving. Known as a “Bigway”, the daring jump involves 57 people holding hands in a predetermined design as they hurtle towards the ground, head first. After making the first shape, the group then break away before coming back together to form a second shape all in a single skydive. Captured using a GoPro camera by Alaskan skydiver, Ben Nelson, 36, the topsy-turvy footage shows the adrenalin junkies soaring through the air at around 160mph before banding together twice in mid-air, making the stunt a world first. (Photo by Ben Nelson/Caters News)

A bird is cleaned at the International Bird Rescue in Fairfield, California January 20, 2015. A gooey, unknown material discovered on the eastern shores of San Francisco Bay is clinging to the feathers of birds, and more than 100 birds, mostly species of oceangoing, diving ducks, have died after their feathers were fouled by the viscous substance now undergoing testing at state labs in Sacramento. (Photo by Robert Galbraith/Reuters)

Academy Award-winning actor and comedian Robin Williams has died at 63. The cause of death is thought to be suicide by asphyxiation.

Joe Bagley is a paper artist who lives in Boston. All of his designs are original works, and each is cut by hand. No lasers, dies, or prints!

Hundreds of onlookers descended upon White Rock beach, just south of Vancouver, Canada, on June 12, 2012 to mourn a beached whale that died on the sandy tidal flats. (Photo by Nick Procaylo/PNG/PNG Merlin Archive)

Flowers are placed on actress Elizabeth Taylor's Star on the Hollywood Walk of Fame on March 23, 2011 in Hollywood, California. The Academy Award winning actress died Wednesday at age 79. (Photo by Charley Gallay/Getty Images)