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#91 | |
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Keith, as Socratic dialogues go, yours isn't getting very far, is it? DT |
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#92 | |
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Those look pretty much like yer bog-standard mammalian ears to me! What�s your point? Want to ask how long mouse ears took to evolve next? Why does that need a separate timeline? Okay, let�s try a thought experiment. Say that the lifecycle of a bat is a year. Suppose a cumulative series of mutations is required to turn a near-non-existant flap of skin into a pinna. Ten thousand enough? Suppose, further, that it takes each mutation ten generations to spread through the population. We�re looking at a minimum of... wow, 100,000 years! Keith, you do realise that 100,000 years is practically invisible in the fossil record... don�t you? Try a million. A million years... a million generations. Keith, how long do you think it might take? Keith, let�s cut to the chase. You are talking about echolocation. And yet you ask about ears rather than noses; you don�t differentiate between pinnas (which are an evolutionary �so what?�) and the middle ear, where bats do the really clever stuff; you ask for any old bat, clearly not knowing the difference between microchiroptera and megachiroptera. Let�s face it Keith, you don�t really know what you are on about. Meanwhile, since I like this pic so much, here�s a bat skeleton: ![]() Notice anything... mammalian... about it? �How do I look Mammalian? / Let me count the ways...� Nah, don�t have that long. TTFN, DT |
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#93 | |
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#94 | |
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Starboy |
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#95 | |
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Keith |
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#97 | |
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b) Rocks. DT |
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#98 | |
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Water Helium |
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#99 | |
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Like I say, our Keith doesn't know what he's talking about. Hey Keith, a little challenge. Could you define evolution for us, just so we know what you mean by it? Perhaps we're talking at cross purposes...? DT |
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#100 | |
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Keith |
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