<< Isn't that more environmental, with improvements in nutrition? That's the impression I was under. >>
It's still change. As someone else said, evolution is a description rather than a process. If you really want proof of evolution, consider the molecular evolution of genes. Why do humans and chimps share about 98% of genes, if they didn't diverge from a common ancestor some 5 million years ago? If that isn't proof, what is? By saying that humans are, on average, getting larger, I'm not really saying that if this trend continues, eventually there will be some new species. But we *are* witnessing change; who knows where it might just possibly lead? Just because we can't see the changes or see where they might be going doesn't mean they aren't happening. As I said, it's impossible for a human to really grasp geologic time. Tom Beck "I always knew I'd see the first man on the Moon. I didn't realize I'd also see the last." - Jerry Pournelle
