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Some of these relationships are really interesting. For example, according to this, an American Robin is more closely related to the Tyrannosaurus rex than the
by derbOac 3y ago
Some of these relationships are really interesting.
For example, according to this, an American Robin is more closely related to the Tyrannosaurus rex than the Tyrannosaurus rex was to, say, a Brachiosaur.
I guess I knew birds were closely related to dinosaurs but I didn't think of it quite that way.
The mass extinction intervals are also a little concerning when you think of where we are now. It looks like right about now is when there would be another one, if there was some regularity to them.
- pvg 3y agoIt looks like right about now is when there would be another one, if there was some regularity to them The timescale of the tree graph is a bit misleading since it's not very... scaly. Better extinction event graph: https://en.wikipedia.org/wiki/Extinction_event https://en.wikipedia.org/wiki/Extinction_event They're not all that regular nor are we particularly 'overdue' a big one.
- n42 3y agoThis video gives you an idea of the scale, using a football field: https://www.youtube.com/watch?v=M8V_glRW1hA https://www.youtube.com/watch?v=M8V_glRW1hA
- alexthehurst 3y agoBut: we are KNOWN to be undergoing one right now. https://en.wikipedia.org/wiki/Holocene_extinction?wprov=sfti1 https://en.wikipedia.org/wiki/Holocene_extinction?wprov=sfti...
- boxed 3y ago> I guess I knew birds were closely related to dinosaurs but I didn't think of it quite that way. Birds ARE dinosaurs. Just like humans ARE mammals.
- deleted 3y ago[deleted]