• errer@lemmy.world
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      16 days ago

      Yeah well I couldn’t beat a shark to death with a chair before trees existed, that’s my primary means of shark defense!

  • tensorpudding@lemmy.world
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    16 days ago

    Another fun tree fact I heard, the reason why coal exists was because trees existed on land for a long time before decomposers existed to digest their fibers. They just died and were buried intact. This actually caused a problem with sequestering so much CO2 that the earth went into an ice age.

    Edit for clarification: decomposers did exist but they couldn’t decompose tree lignin specifically so it just stayed around.

  • SkyeLight@piefed.social
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    16 days ago

    Sharks have existed long enough that their species (and our Sun) has circled around the entire Milky Way Galaxy - twice.

  • JohnnyEnzyme@piefed.social
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    16 days ago

    That’s a good one. Although at the same time, we almost certainly discovered trees well before sharks.

    And for no particular reason, a fun fact from an earlier thread-- eggs came over 500million years before chickens did!

      • JohnnyEnzyme@piefed.social
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        16 days ago

        Something I learned just now is that the problem / paradox evidently goes back to Ancient Greece! [WP]

        But yeah, I think we could consider it solved (among rational people) with the development of the Theory of Evolution, combined with a better understanding of zoology and various other fields. So, maybe by 1900? And I suspect that the ancient-ness of the problem is a big reason people still use the expression, even though it’s been shown to be a faulty question for over 125yrs.

        Btw, internal eggs to my understanding are as old as sexual reproduction, over 600M years ago. External, shelled eggs go back over 300M years ago. Galliformes (chickens and relatives) go back about 85Myrs.

    • arctanthrope@lemmy.world
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      16 days ago

      how bout germophobes; bacteria and other microbes had already been around for 2.5 billion years before any multicellular life evolved. for over 70% of the history of life, they were the only thing that existed

  • classic@fedia.io
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    16 days ago

    TIL that this thing about trees pre-existing decomposers doesn’t mean that there weren’t things before trees. Like, I thought we had a planet of trees and plants and nothing else, no fish, insects or whatever.

  • Tattorack@lemmy.world
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    16 days ago

    I always find this very funny. It’s as if the sharks today are venerable million year old entities. As if the species sharks today have anything in common with the shark species 100 million years ago.

    The horseshoe crab fits much better in this sentiment, as they haven’t physically changed at all this whole time.