There’s a single origin for everything. It doesn’t matter how many times the descendants of that common ancestor have diverged and reconverged.
Comment on YSK - All song birds on the planet are descended from ancestors in Australia.
acockworkorange@mander.xyz 1 day agoThere’s plenty of convergent evolution. Plants keep evolving into trees, so there isn’t a single origin for them. Crustaceans keep evolving into crabs.
Hawke@lemmy.world 1 day ago
acockworkorange@mander.xyz 1 day ago
- You’re talking about a different subject than me.
- 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.
Hawke@lemmy.world 1 day ago
- 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.
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.
k0e3@lemmy.ca 1 day ago
Craaab people, craaab people♫