Zitat des Tages von Simon Conway Morris:
It is difficult to imagine evolution in alien planets operating in any manner other than Darwinian.
By obtaining a sense of its place in the unfolding drama of life, set in an ecological theatre, so we can understand why it has become one of the leading players.
It is my opinion that human history can make no sense unless evil doings are recognized for what they are, and that they are bearable only if somehow they may be redeemed.
I would argue that in any habitable zone that doesn't boil or freeze, intelligent life is going to emerge because intelligence is convergent.
If there were a clear prospect that such evils were part of a barbarian past, then at least we might find a small crumb of comfort. No such prospect exists: no scientific analysis can even remotely answer or account for past and present horrors of human behaviour.
The Burgess Shale is not unique, but for those who study evolution and fossils it has become something of an icon. It provides a reference point and a benchmark, a point of common discussion and an issue of universal scientific interest.
The fact that some things are mysterious or that they touch on mystery isn't in some way a capitulation, and one should realize that there are some things that we may never understand and, to that extent, should be humbled by that.
As a number of people have stressed over the years, I think it would be premature to assume science itself will explain everything.
Evolution is true, it happens, it is the way the world is, and we too are one of its products. This does not mean that evolution does not have metaphysical implications; I remain convinced that this is the case.
I don't think an alien will be a blob. If aliens are out there they should have evolved just like us. They should have eyes and be walking on two legs. In short if there is any life out there then it is likely to be very similar to us.
Pikaia is a missing link because, of all chordates, it's probably the most primitive.
One can say with reasonable confidence that the likelihood of something analogous to a human evolving is really pretty high.
Scientists have wonderfully explained the organization of the universe, but that's really all it claims to do, and I think it does that very successfully.
Massive self-confidence is boring.
The common ancient ancestor of mulluses and chordates could not possibly have possessed a camera eye, so quite clearly they have evolved independently. The solution has been arrived at by completely different routes.