charmander6000 posted...MariaTaylor posted...
StealThisSheen posted...
I really don't think that's the main or only distinguishing characteristic between birds and other reptiles.
it's not. classes are huge. think of the difference between a human and a horse. those are both in class mammalia. you could reasonably expect them to be very different.
that being said birds = reptiles is not a decided fact anyway
it is a relatively new (20ish year) debate that still has no clear consensus in the scientific community
To be fair that's because we've only been doing substantial genetic testing for that long. The evidence is quite strong that birds are closer related to crocodiles than crocodiles are to other reptiles.
The only issue I've heard is if whether or not it is okay to have classifications for non-monophyletic groups.
Is this any different than the "people are more similar to pigs than apes" thing?
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