'We could see it wasn't a dinosaur, and the spine tables and armour plates put it on the crocodile side of the evolutionary tree
These now-extinct species evolved along a separate branch of the evolutionary tree
that split off from our common ancestor.
If the pterosaurs really carried feathers, it means these structures arose deep in the evolutionary tree
- much deeper than at the point when birds originated.
"Our methods allowed us to identify branches on the hadrosaur evolutionary tree
that showed rapid evolution in different parts of the skeleton," said co-author Dr Armin Elsler.
aYep, if you happen to be a woman, or don't happen to be white, you're marked out by these block-headed bozos who're convinced they're top of the evolutionary tree
"Quammen provides us with a lucid guide to a lot of interesting science, but he overstates the impact of horizontal genetic transmission on our ability to reconstruct Darwin's diversifying evolutionary tree
. Today, that sketched-out tree of Darwin still looks good, even if, a la Quammen, we should add a couple of faint dashed lines showing HGT [horizontal gene transfer] between its spreading branches." JERRY A.
"Since they had few close relatives, their extinctions meant that entire branches of Earth's evolutionary tree
were chopped off," Davis says.
The team of scientists used massive DNA sequencing and big data analysis to create the first evolutionary tree
encompassing a large fraction of Earth's bacteria over the past billion years.
On the evolutionary tree
, they're closer together than horses and donkeys.
When scientists draw an evolutionary tree
of penguins such that each branch indicates a separate species, there are many branches.
As an exception, the rhinoviruses of humans and equines are close neighbors based on skew values that are separated more distantly in the standard evolutionary tree
. Two of the three unclassified picornaviruses (Washington bat and bat crohivirus) map in the cluster of avian EMV and hepatitis A virus.
Far from being at the base of the evolutionary tree
, they pretty much had life sussed, and as such were a refutation of the problem foreseen by Maynard Keynes: that the human race's evolutionary impulse towards working hard in order to create wealth would be difficult to discard once a general sufficiency had been achieved.