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| Extinct Animal Questions | |
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| Topic Started: Nov 26 2013, 10:24 PM (193,401 Views) | |
| CyborgIguana | May 3 2015, 07:09 PM Post #1396 |
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Isn't the ability to produce milk pretty much what makes a mammal a mammal? |
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| Mathius Tyra | May 3 2015, 08:17 PM Post #1397 |
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Rat snake is love... Rat snake is life
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Some scientist even think that lactation begun way back to something like some late species of cynodont. |
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| Yi Qi | May 3 2015, 09:05 PM Post #1398 |
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Not lactation, but specfic milk producing glans for it, yes. as for milk production, Dicynodonts and Cynodonts (aswell as more advanced therapsids) pretty likely already lactated from patches on their skin, a lot like modern day monotremes. |
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| Paleop | May 3 2015, 09:10 PM Post #1399 |
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Paleopterix
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acording to this did this study actually happen? and where can i learn about it? Edited by Paleop, May 3 2015, 09:11 PM.
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| CyborgIguana | May 3 2015, 09:38 PM Post #1400 |
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Here's the paper, enjoy. |
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| Tyranachu | May 5 2015, 11:54 AM Post #1401 |
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Nerdasaurus
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I noticed that the skull of Dunkleosteus looks very similar to a lungfish's.![]() ![]() So, is it possible for Dunkleosteus to have lips just like a lungfish's?
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| Jules | May 5 2015, 01:44 PM Post #1402 |
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Mihi est imperare orbi universo
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There are two reconstructions of it with lips, so I'd say it's not impossible.![]()
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| Joe99 | May 5 2015, 11:39 PM Post #1403 |
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he looks cute with lips but not as scary |
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| CyborgIguana | May 6 2015, 07:14 PM Post #1404 |
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Yeah well evolution doesn't select for scary.
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| Mathius Tyra | May 7 2015, 09:47 AM Post #1405 |
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Rat snake is love... Rat snake is life
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I am curious what made bone-crushing hyenas lineage to become extinct in their range outside Africa and some parts of Asia. I know that dog-liked hyena were outcompeted by canines, but what about the bone-crushing ones? They seems to adapt pretty well to me, being less fussy about what they eat and only bone alone can satisfies them. Still, they were completely extinct by the end of ice age in Europe and most part of Asia. |
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| Furka | May 7 2015, 01:23 PM Post #1406 |
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Perhaps human interference ? We do know cave hyaenas and Neanderthals were in conflicts and competed for food. |
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| CyborgIguana | May 7 2015, 08:49 PM Post #1407 |
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I don't know how this didn't occur to me until this point, but how is it that we have fossilized tracks made by swimming animals? Shouldn't pretty much any impression made in the sediment at the bottom of a water body be sifted out of existence relatively quickly? Obviously there must be an answer since the trackways are there, but I'm just curious to know what it is. TBH this didn't even occur to me until my dad pointed it out when I told him about such fossils. Edited by CyborgIguana, May 7 2015, 09:21 PM.
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| Acinonyx Jubatus | May 7 2015, 09:30 PM Post #1408 |
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I AM THE UNSHRINKWRAPPER!
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It has to be very still water or else hardish sediment and very gentle water, and then quickly buried by new sediment. |
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May 7 2015, 09:52 PM Post #1409 |
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Pull my finger!
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![]() Sorry, had to. |
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| CyborgIguana | May 7 2015, 10:28 PM Post #1410 |
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Ah, that makes sense. Thanks for clearing it up.
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| 3 users reading this topic (3 Guests and 0 Anonymous) | |
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