Originally posted by RJHinds
Would you comment on this?
http://www.youtube.com/watch?v=B-GPOwccx5U&NR=1&feature=endscreen
Interesting that he is happy with an old Earth so presumably he thinks that every 'kind' of animal has always existed - there have always been cats for example. Presumably he is happy that the fossil record does actually go back millions of years. His main issue in this video is presented at the end and it is that we have no mechanism for development of new body plans, new organs etc.
This is simply not true. We have Gene Duplication (http://en.wikipedia.org/wiki/Gene_duplication) and subsequent evolution. What we
don't have is any mechanism that would
stop evolution from developing new body plans and organs from those duplications. We also have pretty good fossil records showing body-plan evolution, eg in whales (http://www.pbs.org/wgbh/evolution/library/03/4/l_034_05.html)
He also says that much of the evidence for evolution of homo-sapiens from ancestral ape forms is hoaxed (Piltdown Man) or over-hyped. There may be some truth to this but I don't think it is that surprising. I would expect us to have found more solid evidence of our ancestry than most other species since we will be concentrating more on our own history than any other single species. However, our ancesters may also have been living in areas that were less likely to preserve organic remains. So a lack of fossil evidence may not be such a killer. I really don't know the stats to give a well founded opinion. However, the preponderance of hoaxes and mis-identification is certainly not a surprise given the interest in this particular line.
There is lots of other evidence however that ties in with whatever fossil evidence we do have, not least of which is the DNA and morphological similarities.
I promised myself I would not get sucked into this pointless thread. Damn!
--- Penguin.