Since this startling creature's discovery in the 1970s, scientists were baffled as to how Quetzalcoatlus managed to get off the ground — but now they've finally solved the mystery.The Quetzalcoatlus has baffled experts for decades. Part of the ancient pterosaur group of flying reptiles, its fossilized remains were first discovered in the 1970s and revealed a staggering wingspan of 40 feet. Although it was evidently the largest flying dinosaur that ever lived, exactly how it managed to fly remained a mystery — until now.

Park officials have put out a notice warning visitors to steer clear of these stunning yet venomous sea creatures.Padre Island National Seashore/FacebookAn uptick of blue dragon sightings on the beach has park officials warning visitors to be vigilant. Little blue creatures have been washing ashore on the coastlines of Texas. These eye-catching sea creatures are Glaucus atlanticus, known as blue dragon sea slugs. Although some of these blue dragons have been spotted around Texas beaches before, they are quite rare.

Known as "The Dating Game Killer," Rodney Alcala murdered at least four people before his television appearance — and would kill again soon after.YouTubeSerial killer Rodney Alcala during his infamous 1978 appearance on The Dating Game that took place in the middle of his string of grisly murders. For most people, September 13, 1978 was an ordinary Wednesday. But for Cheryl Bradshaw, the bachelorette on the TV matchmaking show The Dating Game, that day was momentous.

Also known as Titan arum, the 5-foot tall plant weighs 40 pounds and smells like dirty diapers.Live ScienceA rare ‘corpse flower,’ which is native to Indonesia, blooomed for the first time in Manhattan’s Upper West Side. A rare natural phenomenon recently happened in New York. A gigantic corpse flower made its first bloom — and it took 10 years for it to happen. According to Live Science, the corpse flower, known by its scientific name Amorphophallus titanum, arrived at the Arthur Ross Greenhouse at Barnard College in 2013 as a gift from the Brooklyn Botanical Garden.

Who was the oldest person to ever live? Who is the oldest living person today? And how did these supercentenarians become the longest-living people in history?The average human lifespan is around 73 years. That’s plenty of time to see the world change with new technology, to live through good times and bad times, and maybe even start a family. That said, some people have lived much longer than 73 years. So who is the oldest person to ever live?