| Blogs > prakash3020 > My Blog |
|
A Brief History of Dinosaurs An illustration of the theropod Majungatholus atopus, which had a very bird-like pulmonary system. CREDIT: Nicolle Rager Fuller, National Science Foundation Most people think of dinosaurs as big, ferocious and extinct reptiles. That's largely true, but there are some misconceptions. The word dinosaur, which means "terrible lizard," was coined in 1842, but now we know that dinosaurs aren't lizards, although they share a common ancestor. Lizards as a group are primitive compared to dinosaurs. Dinosaurs were the largest land animals of all time, but a great number of dinosaurs were smaller than a turkey. Dinosaurs as a group got bigger over time until an extinction event 65 million years ago wiped out all but bird-like dinosaurs. Scientists don't agree entirely on what happened, but the extinction likely was a double or triple whammy involving an asteroid impact, choking chemicals from erupting volcanoes, climate change and possibly other factors For every minute you are angry, you lose sixty seconds of happiness. |
|||
|
no one really knows the truth about what was the living experiences of these creatures.. not only is there no written history, man has found a hard time to find a human species during that period, let alone one who could even write about what they would have seen if they even existed during that time. We may well be careful about what of "theory" is asserted and pushed as fact.    Remember, at one time, man claimed Pluto was something other than what they now claim as to the nature and expanse of what is a planet and what is the universe... (joking) We truly don't know... Maybe the Flintstones were around 
|
