Lizards Rapidly Evolve After Introduction to Island
Italian wall lizards introduced to a tiny island off the coast of Croatia are evolving in ways that would normally take millions of years to play out, new research shows.
In just a few decades the 5-inch-long (13-centimeter-long) lizards have developed a completely new gut structure, larger heads, and a harder bite, researchers say.
Entire article can be found on National Geographic website...
I am not going to paste the entire article... You can read it for yourself.
Of course, in general, I'm not very friendly towards invasive species, since they have a tendency to create huge problems for the local ecosystems, but this time, I think I'm willing to look the other way because of the implications of these rapid changes in that species.
Amazing, really. It may give some really big insights as to how evolution works, as well as perhaps shoot a new, shiny big hole in creationist arguments.
You can see the same thing in amphibians over the course of only a few generations. Feed the insects you feed the amphibian carrots, the boost of beta carotene will cause the amphibian's skin to take on more red tones. For example, a yellow frog will appear more orange, a red pattern on a green frog will appear more vibrant. The offspring retain the bright colors after only a few generations without being fed the extra beta carotene. It's a relatively small genetic mutation but it's still an evolution process you can WATCH. Uber.
Oh they also make a special fish flake that basically allows the same thing, but I haven't ever experimented with that.