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But researchers believe that after the sea levels dropped and the bird reappeared, it became flightless once again
makes it sound like the birds miraculously gained flight when the islands sank, then lost their wings again when they islands came back, which is more than a tad beyond the pale.
I'd be looking for chemical/bacterial/viral reasons for the birds losing their wings, not marvelling at how logical it all is -- because it's not logical, at all; evolution works by random mutation, not according to set formulae.
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Typical reporters not understanding evolution: just because "Species A" evolves into "Species B" that doesn't mean "Species A" automatically goes extinct. So the flightless one dies out, a "modern" version of the original population recolonizes and makes similar adaptations to the local environment. Losing the ability to fly when there are no predators around to make it necessary is common - it's an expensive ability - just look at New Zealand!
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Life is much stronger than we presume. Much much stronger.
I remember going down an old ochre mine in France once. A hundred meters down the tunnel, around one of the lights (there was one every 10 meters or so) was a little osasis of small plants, little grasses and ferns, extending out say 40 cm. There was enough light for them to life, moisture, and nutrients. And they were happy doing their thing.
Life clinging on in the most tenuous of situations and yet thriving.
I dont know of that, is it a film about plants in caves gathered around a light bulb?
yes, but it what happens next, it was like... like... ummm.... jurassic park on a heavy dose of ritalin. (you know, a typical franai frogolian movie, nothing much happens and every one thinks it was briliant because it made you sleepdream imagine.)