Search found 7 matches

by Petaurus
Wed Aug 14, 2013 2:31 am UTC
Forum: Science
Topic: Interactive Evolutionary Tree of Life
Replies: 16
Views: 7754

Re: Interactive Evolutionary Tree of Life

I'm not so sure. I think if we take all species on earth at this present time, they are collectively far fitter than all the species on earth at any previous time - as in if all of both sets of species were dumped on earth at any time post the oxygen-explosion I think the present day species and th...
by Petaurus
Tue Aug 13, 2013 9:19 am UTC
Forum: Science
Topic: Interactive Evolutionary Tree of Life
Replies: 16
Views: 7754

Re: Interactive Evolutionary Tree of Life

Well, surely evolution has a direction in terms of fitness. It's a bit like entropy: Although entropy is driven by random processes and could even spontaneously decrease locally, in general it always increases. Likewise evolution could produce less fit organisms generation after generation but in g...
by Petaurus
Tue Aug 13, 2013 3:39 am UTC
Forum: Science
Topic: Interactive Evolutionary Tree of Life
Replies: 16
Views: 7754

Re: Interactive Evolutionary Tree of Life

Pretty cool.

It might be too late now, but it really rankles with me that you called it bioladder. Thereby reinforcing an outdated and incorrect understanding of evolution as rungs on a ladder which implies there is some end point or 'top' and 'bottom', or such things as 'higher and lower 'species'.
by Petaurus
Tue May 21, 2013 4:57 am UTC
Forum: Science
Topic: Evolution question: Why DON'T niches get filled
Replies: 61
Views: 9853

Re: Evolution question: Why DON'T niches get filled

Check out the book Parasite Rex. Parasites killing their host is significantly different than parasites that CAN kill their host. Malaria is not Ebola. Thanks for the book recommendation. I'm not sure I understand you though. Rather than me blabbing away and confusing things more, would you care to...
by Petaurus
Tue May 21, 2013 2:20 am UTC
Forum: Science
Topic: Evolution question: Why DON'T niches get filled
Replies: 61
Views: 9853

Re: Evolution question: Why DON'T niches get filled

If a few individuals can profit in the short term, even if it is at the expense of our very existence, that's what will happen. This is overly simplified; it doesn't fully line up with observations. This was overly simplified I agree. It wasn't really meant to be an accurate description of natural ...
by Petaurus
Mon May 20, 2013 7:49 am UTC
Forum: Science
Topic: Evolution question: Why DON'T niches get filled
Replies: 61
Views: 9853

Re: Evolution question: Why DON'T niches get filled

Evolution was explained to me as a drive to fill a niche. An asteroid wipes out all the big animals, but those big animals filled niches, so the remaining little animals diversify, evolve to fill the niches, and now we have big animals again. As many people have answered you perfectly; evolution wa...
by Petaurus
Fri May 17, 2013 8:59 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1210: "I'm so random"
Replies: 242
Views: 40871

Re: 1210: "I'm so random"

Sandor wrote: AlexTheSeal wrote: I'm pretty disturbed by the "Customers Who Viewed This Item Also Viewed" section, though. White face paint... The Best of David Hasselhoff... and a fresh whole rabbit. I'm not seeing The Best of David Hasselhoff, but I do see The 2009-2014 Outlook for Wood...

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