How dinosaurs conquered the world!
Toronto: Dinosaurs didn`t need to kill other animals to become world beaters, says new research.
According to Canadian and US scientists, dinosaurs - the most powerful creature ever to walk on earth - did not spread throughout the world by killing other creatures but because of a natural catastrophe that wiped out their competitors.
"The decision was not made lightly, considering the advanced stage of development," chief executive Andreas Barner said on Friday of the hoped-for moneyspinner aimed at premenopausal women with a persistent and unexplained lack of sex drive.
Boehringer`s move marked the failure of the latest attempt to find a female counterpart to Pfizer`s Viagra, the blockbuster blue pill for men. Drugmakers have tested various ways to boost female libido, but women`s sex lives have proved difficult to target with medication.
The scientists have come to this conclusion after studying the new dinosaur, named Sarahsaurus, discovered in Arizona where this animal lived about 190 million years ago.
It is believed that dinosaurs originated in South America and then rapidly spread out to every corner of the world, overwhelming all the animals in their path.
But the new discovery of Sarahsaurus challenges that view. "Until recently, we have viewed dinosaurs as very successful animals that outcompeted other species wherever they went,`` according to Prof Robert Reisz of the University of Toronto, who studied the species with Prof Tim Rowe of the University of Texas and Hans-Dieter Sues of the National Museum of Natural History in Washington.
"But this study puts dinosaurs in a very different light-that they were more opportunistic creatures that moved into North America only when a mass extinction event made eco-space available to them,`` the Canadian scientist is quoted as saying.
Though one of the five great mass extinction events in earth`s history that happened at about 200 million years ago is said to have wiped out many of the potential competitors to dinosaurs, new evidence from Sarahsaurus suggests that they migrated into North America long after the extinction and that no such dinosaurs migrated there before the extinction.
Just 4.3 metres long and weighing only about 113 kilogrammes, Sarahsaurus is very small compared to earlier giant sauropods, the largest land animals in history.
The research appears in the online edition of the journal Proceedings of the Royal Society B.
More from India
More from World
More from Sports
More from Entertaiment
- Trouble mounts for Salman Khan as driver reiterates that actor killed blackbuck
- PM Modi to chair NITI aayog meeting today
- Narsingh Yadav dope scandal: NADA set to announce verdict today
- Protests in Kashmir were fuelled by LeT: Hafiz Saeed
- Cabinet approves changes to GST Bill, drops 1% additional tax
- Eye on China? India to buy four P-8I aircraft from US for maritime surveillance over Indian Ocean Region
- Terrorist captured in J&K's Kupwara district is Pakistani national from Lahore: Report
- No question of tampering with samples of shot putter Inderjeet Singh: NADA boss
- New Israeli settlement plans `provocative and counterproductive`: US
- One billion iPhones have been sold: Apple CEO Tim Cook