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12th Nov 2009, 15:39

#6 (permalink)

sternone

Join Date: Oct 2006

Location: Brussels - Twin Comanche PA39 - KA C90B

Age: 51

Posts: 647

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Yes, these numbers are strange, I have no idea how many birds there are. I know that there are around 10,000 living species, making them the most numerous tetrapod vertebrates. Not many people know that.

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