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5/4/2015 2:59:36 PM
1
[quote]...that's why there aren't millions of transitional ones. There are some though.[/quote]There are not even a thousand of one species.
English
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Fossils in general are very rare. Animals don't automatically become fossils when they die, the environment around them must be just right. Just over 50 specimen of Tyrannosaurs Rex have been identified.
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Only 50 out of at least tens of millions of years?
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Yes. Fossils don't form easily. [quote]Organisms are only rarely preserved as fossils in the best of circumstances, and only a fraction of such fossils have been discovered. This is illustrated by the fact that the number of species known through the fossil record is less than 5% of the number of known living species, suggesting that the number of species known through fossils must be far less than 1% of all the species that have ever lived. Because of the specialized and rare circumstances required for a biological structure to fossilize, only a small percentage of life-forms can be expected to be represented in discoveries, and each discovery represents only a snapshot of the process of evolution. The transition itself can only be illustrated and corroborated by transitional fossils, which will never demonstrate an exact half-way point. The fossil record is heavily slanted toward organisms with hard parts, leaving most groups of soft-bodied organisms with little to no role. It is replete with the mollusks, the vertebrates, the echinoderms, the brachiopods and some groups of arthropods.[/quote]
