An artist's impression of a Cryodrakon boreas, a newly discovered species of pterosaur. AFP
Scientists on Tuesday unveiled a new species pterosaur, the plane-sized reptiles that lorded over primeval skies above T-rex, Triceratops and other dinosaurs of the late Cretaceous.
With a wingspan of ten metres and weighing 250 kilos, Cryodrakon boreas rivals another pterosaur as the largest flying animal of all time, researchers reported in the Journal of Vertebrate Paleontology.
"This is a cool discovery," said David Hone, lead author of the study and a researcher at Queen Mary University in London.
"It is great that we can identify Cryodrakon as being distinct from Quetzalcoatlus," the other giant pterosaur for which it was initially mistaken, he said in a statement.
C. boreas was hiding in plain sight.
Its remains were first discovered more than 30 years ago in Alberta, Canada, yet elicited scant excitement because of the misclassification.
But a closer look at the fossil remains of a juvenile and the intact giant neck bone of a full-grown specimen left no doubt that a new species had been discovered.
Like other winged reptiles living at the same time, about 77 million years ago, C. boreas was carnivorous and probably fed on lizards, small mammals and even baby dinosaurs.
Despite a likely capacity to cross large bodies of water, the location of fossil remains and the animal's features point to an inland habitat, Hone said.
There are more than 100 known species of pterosaurs.
Despite their large size and wide distribution — across North and South America, Asia, Africa and Europe — only fragmentary remains have been unearthed, making the new find especially important.
Two white tiger cubs have been taken to their new home at the Nicaragua National Zoo, where the playful pair will join a menagerie of rare big cat species.
The sanctuary located in Jerash province north of Amman was set up by the Princess Alia Foundation, named after the king's sister, in cooperation with the international animal welfare organisation Four Paws.
A tabby cat whose owners gave him up due to allergies is struggling to find a new home due to a nasal condition that means he is constantly sneezing.
Justin Bieber turns into an make-up artist for wife Hailey– and is surprisingly good at it.
As India ranked 10th in the global infection list, India's top medical body has said the human trials of COVID-19 vaccine may begin at least in six months.
Pets looked after at home are highly unlikely to spread any disease, but dogs or cats abandoned on the street can be dangerous, he said.