Naked Science Forum

Life Sciences => Plant Sciences, Zoology & Evolution => Topic started by: Hadrian on 08/06/2009 18:00:02

Title: How many species are there?.
Post by: Hadrian on 08/06/2009 18:00:02
How many species are there?.

We have a better understanding of how many stars there are in the galaxy, better than how many species there are on Earth.
 
So how many species do you think there are on Earth now and how have existed?
Title: How many species are there?.
Post by: Don_1 on 08/06/2009 18:20:23
Eeee by gum...... I'll need to take my mittens off and my shoes and socks for that one.....

Let's see.....

One, two, three, four, five...... Just talk among yourselves, I could be quite some time..... six, seven.......
Title: How many species are there?.
Post by: Chemistry4me on 09/06/2009 06:32:39
How long is a piece of string?
Sorry, that doesn't answer the question at all, let me follow on from the previous post, eight, nine, ten...darn it, out of fingers already!
Title: How many species are there?.
Post by: dentstudent on 09/06/2009 07:45:52
In Douglas Adams' book "Last Chance to See", I think that Mark Cowardine says that there are perhaps 10 million known species. Although the book is 20 years old, it may give an indication as to the correct ball-park figure. Of course, this 10 million is only the discovered species, and some estimates are that we have found as little as 10% of the total, indicating that there may be 100 million species.
Title: How many species are there?.
Post by: Don_1 on 09/06/2009 08:07:31
Twenty-one thousand, eight hundred and thirty-six, twenty-one thousand, eight hundred and thirty-seven........

In Douglas Adams' book "Last Chance to See", I think that Mark Cowardine says that there are perhaps 10 million known species. Although the book is 20 years old, it may give an indication as to the correct ball-park figure. Of course, this 10 million is only the discovered species, and some estimates are that we have found as little as 10% of the total, indicating that there may be 100 million species.

HOW MANY????????? AS MANY AS 100 MILLION, good grief, this is going to take a tad longer than I thought!

Now where was I ......... BUGGER!!!!!!!! Lost my place now....... Oh well, here goes again.

One, two, three, four, five, six, seven, eight, nine, ten, (shoes and socks off) eleven, twelve................................ twenty-one .... EH!!!!!! Twenty-one!!!!!!
Title: How many species are there?.
Post by: Chemistry4me on 09/06/2009 08:17:45
Eh? You have eleven toes?! [:o]
Title: How many species are there?.
Post by: Hadrian on 13/06/2009 18:48:11
and that's just one of his many feet!   LOL  [;D]
Title: How many species are there?.
Post by: nicephotog on 22/06/2009 07:00:02
Try a taxonomy list, (for a point in bothering).
As far as i remember, as they cut there way through rainforests there is a new species discovered every 30 seconds and it..... oh .... uh.... oh.... it er! it, it seems to be extinct now along with 70 others.

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Did you know? in banks, because of the high number of "variable" contents of their databases (particularly numerically) they use a thing called a "COF" Constantly Open File in there computers.
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Title: How many species are there?.
Post by: Don_1 on 22/06/2009 18:26:22
........One hundred and twenty two million, six hundred and eighty five thousand, four hundred and eleven,
One hundred and twenty two million, six hundred and eighty five thousand, four hundred and twelve,
One hundred and twenty two million, six hundred and eighty five thousand, four----

what was that you said, nicephotog?

Now where was I?  Oh yes,

Twenty million one hundred and sixteen thousand, five hundred and eighty three,
Twenty million one hundred and sixteen thousand, five hundred and eighty four,
Twenty million one hundred and sixteen thousand, five hundred and ..........
Title: How many species are there?.
Post by: Souffle on 01/07/2009 15:18:37
If my memory serves me correctly from a 1995 biodiversity book I read (which it might not so forgive any errors) there are just over 1 million described species, but some people estimate there might be 100 million undescribed species. I think the best accepted estimate for described + undescribed species is around 15 million. And only something like 5% of species that have ever lived are alive today so maybe 300 million species ever?.