Monday, 30 January 2023

Crabs have evolved five separate times – why do the same forms keep appearing in nature?

quote [ In different parts of the world evolution often comes up with the same or similar solutions to life’s problems. ]

One day we might evolve to taste like crab but talk like people
[SFW] [environment & nature] [+4 Classy Pr0n]
[by slaytanik@6:22amGMT]


damnit said @ 3:45pm GMT on 30th Jan [Score:1 Insightful]
Crabs are the trees in the crustacean kingdom
Headlessfriar said @ 9:44pm GMT on 31st Jan
That comment reminds me how much I hate having been told in biology classes that "a banana tree technically isn't a tree but a giant herb", leaving me wondering 1- isn't herb just a vague synonym for plant, or maybe specifically a smallish plant with some food or medical use?

And 2 - "Tree" just is a body plan of plants. Same classes would tell us how apple trees are closer to garden flowers than pine trees, so we've already established that "tree" isn't a photogenic group. Just what they hell were they getting at with "banana isn't really a tree" anyway?
damnit said[1] @ 12:29am GMT on 1st Feb [Score:1 Insightful]
"banana isn't really a tree..." yet. It's not a "tree" yet.

Maybe in a several more thousand years, the banana herbaceous plant will eventually grow hard bark-like skin, roots, and branches.

That is, until Monsanto decides to force bananas to be fungus resistant and sturdy like a tree.

It's like broccoli. There's nothing like it except cabbage, cauliflower, kale, brussels sprouts, collard greens, and kohlrabi. They're all selectively grown from Brassica Oleracea.
mechavolt said @ 8:00pm GMT on 30th Jan
I coincidentally was thinking about the last section the other day, about what makes humans distinct.

It's not speech, because other animals have vocal (and non-vocal!) methods of complex communication. Like birds, ants, bees, whales, dolphins.

It's not tool use, because animals like crows, dolphins, and apes are tool users.

It's not problem solving, because there are animals like crows (realizing how much they show up in my examples) or the octotpus that can solve complex problems. And while they might not be drafting the math equations, insects have been shown to instinctively solve complex calculus problems for flight and distance.

It's not buildings, because creatures like ants and termites make their own complex structures.

It's not art (or at least music), as dolphins and whales sometimes just sing for the hell of it.

It's not adaptability, as we've seen many animals succeed (and unfortunately fail) at adapting to new environmental pressures from mankind or natural events.

Maybe it's clothes? I mean, animals like hermit crabs put on a shell, but that's really more like tool use. Birds use plumage to send messages, but they don't really choose what their feathers are going to look like in the morning when they wake up.

I dunno, just shower thoughts.
damnit said @ 12:34am GMT on 1st Feb
mechavolt said @ 3:20am GMT on 1st Feb
So...shower thoughts?
slaytanik said @ 4:45am GMT on 1st Feb
I think it's our penchant for story telling
crwk8 said @ 4:33pm GMT on 31st Jan
So, It's almost as if there is not such thing as a crab either
mechanical contrivance said @ 6:23pm GMT on 31st Jan
Don't tell me. There were two crabs. They work in pairs.

Post a comment
[note: if you are replying to a specific comment, then click the reply link on that comment instead]

You must be logged in to comment on posts.

Posts of Import
SE v2 Closed BETA
First Post
Subscriptions and Things

Karma Rankings