Natural selection at work

774 points · 38 comments · view on lemmy.world

38 Comments

NoSpotOfGround@lemmy.world · 88 pts · 361d (12 replies)

Context for this:

The common ancestor that links whales and deer existed millions of years ago and exhibited features shared by both groups. This ancestor likely possessed basic artiodactyl characteristics, such as an even number of toes on each foot and a certain bone structure within the ear. Over time, as these creatures diverged to inhabit distinct environments, their physical traits adapted accordingly. Despite these differences, the underlying genetic similarities persist, revealing their deep-rooted connection.

ryedaft@sh.itjust.works · 15 pts · 360d (11 replies)

Was the common ancestor carnivorous or herbivorous?

Revan343@lemmy.ca · 22 pts · 360d

Almost all herbivores are opportunistic carnivores; deer eat birds. Presumably some great swimmers thought the krill (or some other sea life) represented a great opportunity

danc4498@lemmy.world · 8 pts · 360d (8 replies)

It ate krill

zedgeist@lemmy.world · 9 pts · 360d (2 replies)

Just krill me now.

danc4498@lemmy.world · 5 pts · 360d

🍀

Hupf@feddit.org · 3 pts · 360d

ryedaft@sh.itjust.works · 5 pts · 360d (3 replies)

Weird to think that deer descended from krill eaters. Maybe that's why they love salt licks so much.

exasperation@lemmy.dbzer0.com · 8 pts · 360d (2 replies)

I remember reading that the common ancestors of all birds was carnivorous. Basically every herbivore bird descended from carnivores.

See also the giant panda and the red panda.

SuperIce@lemmy.world · 9 pts · 360d (1 reply)

Eh, the giant panda isn't the best example. It's digestive system is still optimized for meat, which is why the need to eat a lot of bamboo and eat very specific parts of it that have a similar nutritional makeup as meat. They wouldn't be able to survive eating other plants, but they could survive (and thrive) eating meat.

exasperation@lemmy.dbzer0.com · 5 pts · 360d

It's interesting because it's very obvious, biologically, that the panda has a digestive system that has a carnivore past, and yet, the very plentiful biomass in bamboo forests just waiting to be eaten rewards the animals that can make use of it. So the giant panda may or may not be "optimized" for meat, but has generations that came out of the free food that is bamboo, so that their very survival depends on a herbivore diet.

AtariDump@lemmy.world · 1 pts · 360d

Swim away!

Tollana1234567@lemmy.today · 2 pts · 360d

Omnivorous most likely, then many animals became herbivores or carnivirous

Zerush@lemmy.ml · 64 pts · 360d (6 replies)

cows_are_underrated@feddit.org · 18 pts · 360d (5 replies)

That pug looks like he just wants to die

captain_aggravated@sh.itjust.works · 13 pts · 360d (1 reply)

I mean his face was built wrong. can you blame him?

cows_are_underrated@feddit.org · 3 pts · 360d

I absolutely can't.

tempest@lemmy.ca · 7 pts · 360d

Can probably only breath while sitting up.

The Ven diagram of pugs I've met whose owners tell me they got surgery to assist breathing is almost a circle

PugJesus@piefed.social · 6 pts · 360d

It's kind of disturbing that we bred a variety of dog that can scream

Zerush@lemmy.ml · 2 pts · 360d

I feel with him πŸ˜‚

starman2112@sh.itjust.works · 61 pts · 361d (9 replies)

One of them gets chronic wasting disease and the other one set the record for the heaviest motherfucker on the planet, I know who I'd rather be

starman2112@sh.itjust.works · 27 pts · 361d (3 replies)

I'd rather be the one with chronic wasting disease bc I have thalassophobia

Not_Dav3@lemmy.world · 74 pts · 361d (2 replies)

I have thalassophobia

So do whales. Their "singing" is actually just them screaming in fear of the hell they're forced to inhabit.

SaharaMaleikuhm@feddit.org · 21 pts · 360d

Marvelous.

tempest@lemmy.ca · 6 pts · 360d

Someone should build a whale MRI to check your hypothesis

Hector@lemmy.world · -10 pts · 360d (4 replies)

Wolves have contracted chronic wasting disease? I thought it had not spread from deer that we were aware of?

It is spreading amongst the deer it is in like half the country now including where I'm at which is one of the first place it was noticed.

rmrf@lemmy.ml · 23 pts · 360d (3 replies)

Homie the second character evolves into a deer

Hector@lemmy.world · 6 pts · 360d (2 replies)

Female hyenas have giant pseudo penises.

iii@mander.xyz · 3 pts · 360d

Don't threaten me with a good time

rmuk@feddit.uk · 3 pts · 359d

Some female humans also have pseudo penises and they're dishwasher safe so checkmate nature.

DragonTypeWyvern@midwest.social · 19 pts · 361d (6 replies)

I love fish memes

hDGGgrLpg8nEucjxWnJz@lemmy.world · 24 pts · 361d

Sir, this is a horse meme

Goodtoknow@lemmy.ca · 11 pts · 361d (4 replies)

Can whales into fish?

DragonTypeWyvern@midwest.social · 5 pts · 361d

They must by definition

erika_s@piefed.social · 5 pts · 361d

Why not?

RaoulDuke@sh.itjust.works · 2 pts · 361d

It’s merman!

not_woody_shaw@lemmy.world · 1 pts · 360d

Do they can whales in Japan? Or is it only eaten fresh?

Petter1@discuss.tchncs.de · -4 pts · 361d

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