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| Bats fly better than birds | |
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| Topic Started: Nov 25 2011, 08:23 AM (1,085 Views) | |
| JohnFaa | Nov 25 2011, 08:23 AM Post #1 |
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Adveho in mihi Lucifer
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http://www.livescience.com/1245-bats-efficient-flyers-birds.html And pterosaurs flied better than bats. THE CYCLE IS COMPLETE. |
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| Rick Raptor | Nov 25 2011, 11:08 AM Post #2 |
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Adolescent
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Then shouldn´t bats eventually outcompete similar birds (e.g. nightjars)? |
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| trex841 | Nov 25 2011, 11:20 AM Post #3 |
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Superhuman
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or...had outcompeted them already? what's keeping them? |
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| Nanotyranus | Nov 25 2011, 12:27 PM Post #4 |
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He Who Fails
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Probably because most of them have a good niche already, and birds hold their niches already, making it easier to stay in their respective niches. Or maybe it's due to something completely unrelated, like live birth vs. eggs. |
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| Russwallac | Nov 25 2011, 12:39 PM Post #5 |
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"Ta-da!"
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Bats haven't been around as long as birds; they've been slowly replacing birds whenever a niche opens, though. They've already grabbed most of the nocturnal niches, and are just now starting on the diurnal ones (fruit bats, for instance). |
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| trex841 | Nov 25 2011, 01:07 PM Post #6 |
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Superhuman
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ah, so it's a slow takeover. |
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| JohnFaa | Nov 25 2011, 01:28 PM Post #7 |
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Adveho in mihi Lucifer
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This. When bats evolved, birds were already dominant, and thus could not expand into new niches. Since the Eocene, they've been expanding, and I would not be surprised if they took over once an extinction event decimated several bird clades. |
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| Spugpow | Nov 25 2011, 03:03 PM Post #8 |
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Adult
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It said they compared a hummingbird to a similar-sized bat. It seems to me that hummingbirds exert a lot more control over their flight than bats, which probably requires more energy (which they can afford because of their high calorie diet). The comparison seems dubious. Also, birds have far more efficient respiratory systems than bats. |
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| Fakey | Nov 25 2011, 03:12 PM Post #9 |
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An unreasonable man. Post Rank: What The?
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Peregrine Flacons say bats ain't got sheeit. |
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| Spugpow | Nov 25 2011, 03:43 PM Post #10 |
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Adult
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Also, how is it that birds beat out pterosaurs? |
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| Fakey | Nov 25 2011, 04:55 PM Post #11 |
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An unreasonable man. Post Rank: What The?
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They didn't. They filled different niches. This is common knowledge. |
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| JohnFaa | Nov 25 2011, 05:12 PM Post #12 |
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Adveho in mihi Lucifer
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They didn't, as I'm fucking tired of explaining. Pterosaurs suffered due to the Turonian extinction events that also decimated 80% of the marine reptile taxa and several dinosaurs like brachiosaurs, and even then birds never took advantage, as azhdarchids quickly recovered, and so did ornithocheiroids and possibly anurognathids. Indeed, no flying bird in the Mesozoic was above the size of a hawk. |
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| Nanotyranus | Nov 26 2011, 03:43 PM Post #13 |
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He Who Fails
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Pterosaurs are THAT AWESOME. |
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| JohnFaa | Nov 27 2011, 10:39 AM Post #14 |
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Adveho in mihi Lucifer
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Indeed, to deny their awesomeness is not heresy, is reality denial. |
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| Fakey | Nov 27 2011, 12:40 PM Post #15 |
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An unreasonable man. Post Rank: What The?
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You know, until someone goes back in time and wipes them out a hundred million years too early. TEEHEE. |
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