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Reminder to new users here: Cladistically, there is no such thing as a fish or a tree. Also, sharks have existed longer than Polaris, the North Star has.
Reminder to new users here: Percentages are basically multiplication, and thus follow the commutative property and can be shuffled around accordingly. 25% of 128 is the same as 128% of 25, and may be easier to solve in your head.
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And everything turns into crabs, except sharks
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Okay fish I knew, but trees?
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yep. No common ancestor. Lots of plants independently decided to get very tough and tall.
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Yup. Add to it that a lot of plants can grow in tree-like ways or bush-like ways depending upon context. Plants, they're tricky bastards; don't trust anyone who doesn't have a fixed body plan.
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The English elm is an interesting example. Dutch elm disease has killed almost all the elm *trees*, but elm *hedges* can keep sending up suckers from the roots.
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Personally, I like organisms that can differentiate their cells. Hmm, maybe those two things are related. Generic cells mean flexible body plan..
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Be careful when applying that argument to genus Homo. You'll win friends you may not like
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Yeah please don’t take this seriously I’m making a joke about things with an indefinite number of growing tips, and not talking about any chordates, in any of the wonderful, varied, and malleable forms we come in
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Completely understand. I just saw an eminently misquotable sentence.
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And even descriptively it gets really fuzzy at the edges. What's a tree vs a bush? Or where do you draw the line between particularly hearty grasses and trees?
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*points at banana trees and giant bamboos* GRASSES.
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Wow, never thought of bananas as grass seeds, but I can see that now - the way they are clustered together...
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If I remember right, aren't bananas berries? (And strawberries, raspberries, blackberries, cloudberries, etc, not berries. Pumpkins are berries though.)
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That is fascinating as heck.
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Yeah, think I read that most plants have genes to go in a big strong tree direction or a smaller grassy herb direction & as species diverge they tend to go in one or the other direction
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I have a book "Trees" which is basically a taxonomic encyclopedia of them, and was astounded to learn that Teak, is REALLY closely related to Basil. (I've always described palms as "a grass that made it")
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That’s an amazing factoid! Was also going to speculate that all this would mean that midsized bushes are the intermediary between grasses & trees, maybe always slowly evolving in one direction or the other?
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Teak... and basil??? Coooool!
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Convergent evolution! If something works it just works.
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I think of it as tree being a verb rather than a noun. Something that plants can DO.
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Does wood have a common ancestor?
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Really interesting, considering how disruptive wood was when it first manifested. Thanks!
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Wow this is worse than knowing sharks are older than Saturn's rings wtf
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Cladistically, there is no such thing as math or logic, either. That's why most of us ditched cladistics a long time ago!
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‘Cladistics’ is a word that was just made up
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That is true of all words. However, it's etymology gives you a good idea of what the goals are. The problem is that it got bogged down in inane philosophy about what "real" is in biology that paid zero attention to relevant theory and lost sight of the important evolutionary issues.
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‘Etymology’ is a word that was just made up
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Seriously though, it’s a fascinating subject. Here are some of my favourites:
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It's constructs all the way down.
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Ygolomyte is a word I just made up with zero connection or reference to anything else too
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I Googled it, and you're right, Polaris is only 45 million years old. That's a long time from a human point of view, but absurdly young for a star. Very strange. Sharks have existed for 450 million years, which is also strange, considering that chordates haven't been around much longer than that.
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Incidentally, Polaris is only been aligned with the North Celestial Pole for about a thousand years. Which made me jump to the conclusion that you were committing some kind of semantic fallacy with a fancy Latin name. I'm glad I thought to use Google before going down that rabbit hole.
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"Also, sharks have existed longer than Polaris, the North Star has." WHAT?
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Polaris is technically three stars in a trinary solar system, and the main one, Polaris Aa is estimated to be between 45 and 67million years old. Sharks have lived on Earth for at least 455million years, first appearing in the Cenozoic Period.
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I’d say that cladistically everything with a hinged jaw is a fish. Whales are fish (again), and so are we. Our ancestors were fish, so we are fish. That’s why I wrote the first book to teach evolution to preschoolers: www.grandmotherfish.com
www.grandmotherfish.com
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