ancient  
I mean it sounds as if megalodon could have had a picnic on them!
Interesting point about the problem regarding insect spiracle respiration. They don't work very well on a large insect because the surface area to volume ratio shrinks very rapidly as size increa...
...nosaur. Basically, it was bird on the outside and dinosaur on the inside.
New microscopic images of the ancient blood cells inside the bones of Archaeopteryx show surprisingly slow growth and matur...
Pterosaurs, the mighty winged-lizards, soared ancient skies expertly hunting for prey. Because they evolved from reptiles prior to modern birds, it was once believed that pterosaurs were primitive, p...
 
The dinosaurs of Australia disappeared at the end of the Cretaceous, as they did the world over. Their departure marked the end of the supercontinent of Gondwana.
By the middle of the Eocene, some...
Scientists from Sweden's Uppsala University have pieced together a bizarre marine predator who trolled the seas some 505-million years ago. Hurdia, an extinct species of anomalocaridid, had a giant h...
...t then I read Fossil Huntress's guess. I think she brings up a good thought. I haven't ruled out ancient animals. If she says ancient or modern mollusca or gastropod, then she might know mor...
... It's true that when people get really old, young people think senior citizens are some type of ancient breed and treat them as they know nothing of the new world. This has been going on f...
...themselves at that point. Dinosaurs have been known of for thousands of years by humans, and I think even ancient romans studied them. Mostly for the shapes and minerals they contained though. Can y...
Hi rickymouse,heres another one for you.
The Ancient Aztecs used to worship a god called Quetzalcoatalas.
He was a winged god and beared the resemblance to a winged serpent.
I know what you are thi...
...osing as it was fossilizing. a seperation of 10 inches could make a world of difference, especially by an ancient river or by ancient pine trees. Exposure to the elements could make some look stripe...
...t; was even coined in the eighteenth century.
In fact, dinosaur bones have been recorded as far back as ancient China where they found "Dragon" bones (presumably dinosaur fossils) and gro...
...osaurs were land animals.
The pliosaurs, mosasaurs, etc., of the Mesozoic are not dinosaurs - they were ancient marine reptiles and all lived in the surface layers of the oceans (they breathed air)...
...hoto uploader to take a copy off my computer. Here is a link to an image. Photo: http://www.nrru.ac.th/web/ancient/elephant/images/ele011.jpg Hope that helps!...
...ct me if I'm wrong). It is different from the study of dinosaurs, but both the study of dinosaurs and ancient sea life are branches of paleontology. So, tell your five-year-old that ancient sea l...
The Plesiosaurus is one of my favorites too. But they are technicly not dinosaurs. they are ancient marine reptiles.
  
Hmmm. It must be the spirit of the ancient indian or something! Maybe I should return the stones
...D from photographs, to be sure. My best guess is that it could be a trace fossil. Perhaps a burrow from an ancient organism.
Good Luck!...
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