Smithsonian: 10 Dinosaur Mysteries That Continue to Baffle
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The religious nutters insist that man tamed dinosaurs and actually rode them, in the 6,000 years earth has been in existence. Dinosaur articles, movies, and museum displays are so common that you might think all dino-mysteries have been solved, but the Smithsonian reports that a few major ones remain. Among them:
- Who was first? Nobody knows which dinosaur species came first, partly because fossil records provide fragmentary insights rather than “the entire reel,” notes Smithsonian. But skeletons in Tanzania and tracks in Poland tell us that dinosaurs may have started about 245 million years ago—with the slim and “dog-size” Nyasasaurus.
- Hot- or cold-blooded? Several experts say dinosaurs were hot-blooded, but now some suggest that they were “mesotherms,” warming their bodies with their muscle activity and experiencing changing body temperatures.
- Who was biggest? The fossil record isn’t clear, but titanic sauropods evolved a few times into huge creatures like the Supersaurus, Diplodocus, andArgentinosaurus, each of which reached about 100 to 110 feet in length.
- How did they mate? Well, they hatched from eggs. We assume females had a cloaca—an orifice that functions for reproduction, excretion, and urination in today’s crocodiles and birds—and males had an “intromittent organ” found in ostriches and ducks. But without clear fossils of the organs, we still aren’t sure.
Click for more, including the mystery of their “funky headgear,” hunting habits, and, of course, the 11 top dinosaur discoveries of 2012.
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Mike, I think which imaginary guy said let there be light it was when one of the big dinosaurs move from blocking out the sunlight. Instead of creating the earth he found that he had just been living under a dinosaur all his life.
LOL! No doubt my friend.