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"Birds are living dinosaurs, just as we are mammals," said Julia Clarke, a paleontologist studying the evolution of flight and a professor with the Department of Geological Sciences at the University of Texas at Austin.
In spite of the physical differences that distinguish all mammals from other species, every animal in that group — living and extinct — can trace certain anatomical characteristics to a common ancestor. And the same is true for birds, Clarke told Live Science.
"They're firmly nested in that one part of the dinosaur tree," she said. "All of the species of birds we have today are descendants of one lineage of dinosaur: the theropod dinosaurs."
originally posted by: ignorant_ape
a reply to: Thecakeisalie
i think that the cassowray - should be assisted on its path to extinction - yes i have met one - and there is nothing redeeming about them - kill them all
originally posted by: ignorant_ape
a reply to: Thecakeisalie
i think that the cassowray - should be assisted on its path to extinction - yes i have met one - and there is nothing redeeming about them - kill them all
Researchers think they may have found out why we have an appendix and I don't think it has to do with junk DNA. People without an appendix are 4 times more likely to have a recurrence of certain types of problems with "bad bacteria", so the leading hypothesis is, the appendix may store a reserve of "good bacteria" to help fight off the bad bacteria:
originally posted by: Thecakeisalie
...in simpler terms, junk DNA is just that, but it might've served a purpose millions of years ago, imagine if we could unlock the code to find out why we evolved to have an appendix?
For years now, researchers have been searching for a possible function of the human appendix, and the leading hypothesis is that it’s a haven for 'good' intestinal bacteria that help us keep certain infections at bay.
One of the best pieces of evidence we’ve had for this suggestion is a 2012 study, which found that individuals without an appendix were four times more likely to have a recurrence of Clostridium difficile colitis - a bacterial infection that causes diarrhoea, fever, nausea, and abdominal pain.
originally posted by: ignorant_ape
i think that the cassowray - should be assisted on its path to extinction - yes i have met one - and there is nothing redeeming about them - kill them all
originally posted by: EvilAxis
originally posted by: ignorant_ape
i think that the cassowray - should be assisted on its path to extinction - yes i have met one - and there is nothing redeeming about them - kill them all
A little birdie told me they feel much the same way about us, what with how we've destroyed so much of their habitat and are threatening to send them the way of the dodo and dinosaur.
The cassowary belongs to a sister taxon of the giant, extinct moa, whose genome has been sequenced from fossilized eggs. So I say, bring back the big birds.