Comment on YSK - All song birds on the planet are descended from ancestors in Australia.

webghost0101@sopuli.xyz ⁨1⁩ ⁨day⁩ ago

• acockworkorange@mander.xyz ⁨1⁩ ⁨day⁩ ago

  There’s plenty of convergent evolution. Plants keep evolving into trees, so there isn’t a single origin for them. Crustaceans keep evolving into crabs.

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  • WhiteOakBayou@lemmy.world ⁨1⁩ ⁨day⁩ ago

    Always and eternal is the carsinisation cycle. One glorious day we too will realize the optimal form and shuffle sideways into Nirvana. Together, as a species, we will snip the ties of suffering that bind us to this samsara.

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    • k0e3@lemmy.ca ⁨1⁩ ⁨day⁩ ago

      Craaab people, craaab people♫

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  • Hawke@lemmy.world ⁨1⁩ ⁨day⁩ ago

    There’s a single origin for everything. It doesn’t matter how many times the descendants of that common ancestor have diverged and reconverged.

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    • acockworkorange@mander.xyz ⁨1⁩ ⁨day⁩ ago

      1. You’re talking about a different subject than me.
      2. There’s no consensus for what you’re saying.

      1: You’re talking about whether a common ancestor exists for all life, I’m talking about common ancestor for a trait (e.g. tree bark, bird song, these are traits and not organisms).

      2: There’s current debate on whether life emerged multiple times or if it was only once. There’s evidence for both and it’s not a settled debate.

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      • Hawke@lemmy.world ⁨1⁩ ⁨day⁩ ago

        1. If that’s so, then that’s not what you said. You said “plants keep evolving into trees”. While it’s true that we give the name “trees” to a variety of plants with different genetics, all of them share a common ancestor: otherwise they wouldn’t be plants but something else.

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