from tetris11@lemmy.ml to science_memes@mander.xyz on 23 Apr 12:10
https://lemmy.ml/post/29037842
I was introduced yesterday to the FIMS hypothesis by PBS Eons.
The Fungal-Infection-Mammalian-Selection (hey that ryhmes!) hypothesis asks the question of why reptiles didn’t bounce back as much as mammals did after the asteroid K/Pg extinction event.
After all, they need less energy than mammals as cold-blooded creatures, and they produce way way more offspring than mammals.
One theory is fungi: there was an explosion in fungal activity after the asteroid due to the now dark and dingy hellhole the Earth became, and a ton of fungal spores were floating around at the time, as seen in geological record.
Apparently fungal infections are not that deadly to mammals (it just irritates us), but were disastrous for reptiles. Plus us mammals had a new food source in the absence of plants and meat.
There’s no conclusive proof, still, it’s an interesting theory as to why the dinosaurs didn’t bounce back and why us mammals took over.
threaded - newest
Full PBS Eons video here: youtu.be/EPXbSx17030
That was really good, thanks! I’ll definitely watch more
They are a gem, them and the MinuteEarth guys.
Hmm very mammalian
I get that reference.
It was a weird dream… 🦎
lunk?
I can’t find the lemmy thread about this image, but it was fun.
<img alt="" src="https://lemmy.world/pictrs/image/77f0af46-5112-43d9-ae2a-2ae93c0245d1.png">
Get this lizardposting outta here
You know, I was convinced that my chickens would eat any leftovers from the fridge that were about to go bad, but the one thing that they wouldn’t touch was mushrooms. I didn’t realize that the reason for that went all the way back to the extinction event that killed the dinosaurs.
For what it’s worth, they and other livestock love mycelium from culinary species like Pleurotus ostreatus. The substrate is healthy myceliated straw/grain with the complex carbs predigested by the fungi and it has immune system benefits for them: openagriculturejournal.com/…/e187433152305260.pdf
My ideal homestead revolves around multi-tiered green recycling using them. The fungi break down the garden waste that the chickens won’t eat, the unproductive mushroom colonies go to the chickens and pigeon towers, the manure and eggshells go into the vermicomposter and garden. Those mushroom colonies are a major cash crop with a myriad of health benefits depending on what you’re growing.
That’s a cool fact, do you have a source I could check out and read through? I tried some light web searching but couldn’t find anything saying this.
No, it was just an observation about the backyard chickens I used to have. I have no idea if my chickens couldn’t eat mushrooms or if they just didn’t care for them.
ahh, that makes sense, thanks. Yeah, in what brief research I did, it does appear like there are a lot of mushrooms that aren’t safe for chickens and lizards, possibly due to their biological differences, but that there were still a good number of mushrooms they could eat.
The interesting thing you were alluding to is that they have some biological instinct to not eat shrooms because maybe it wiped a lot of them out at one point. That’d be super cool to link :)
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I mean maybe haha - I think they’ve adapted to eat them just fine since then
Chicken: “woah, too soon bro”.
Suck it, stupid lizards.
Tripping Squirrels would make a great band name
Yes it would
Or spiritual successor to goat simulator.
Makes me think of Squirrel Nut Zippers
Further evidence to support my theory that fungi are a cognizant alien species trying to subtly guide mammals/humanity to a better future
Wait, dinosaurs were not cold-blooded lizards. Are we talking lizards, reptiles including extinct dinosaurs or reptiles including dinosaurs including birds?
Oh, I’m not actually sure. I’m embaraased to say I assumed dinosaurs were cold-blooded… but you’re right, theropods/birds are warm-blooded…
Hmm, I might need to watch the video again
<img alt="" src="https://lemmy.world/pictrs/image/af4248f0-fbd7-48ab-859b-73dc8df68075.webp">
What.
I assumed the same thing.
At first glance it looks like the squirrel has got a joint and a bread xD
so lizards can’t eat mushrooms?
they can
<img alt="" src="https://discuss.online/pictrs/image/44bebc04-8a18-462a-970d-fd86994660e8.gif">
Depends on the type of fungus, fungal infections from birds, bars, and the ground are quite serious infections, and often require toxic anti fungal to kill it. If you heard amphotericin B, it’s used to treat lethal fungal infections, but it’s a toxic agent. Candida can be quite serious in immunocompromised people, but is was originally often found in people with hiv. Mammals were quite smaller and they could survive on less food, plus their niche was mostly small or nocturnal insects around the time of the dinosaurs, and most insect and plant orders survived the extinction event.
Bats themselves are mysterious as they don’t know when they evolved, or what animal they came from. Just like bed bugs which came from bats, but nobody knows where their origins came from
yeah that’s true at mammals already being quite small at the time of the extinction event, and so already having an upperhand from a scale aspect.
oh wow I did not know that bats had an unclear origin! I just read up a bit and it sounds like the Onychonycteris and Icaronycteris fossils suggest some kind of tree-hanging mammal, but records are spotty.
scientificamerican.com/…/uncovering-bat-evolution…
Are any reptiles vegetarian? Other than turtles? Can they eat mushrooms?
reptilehow.org/lizards-that-are-vegetarian/
Green Iguanas and others consist on a leafy diet
As for can they eat mushrooms, apparently Bearded Dragon’s and other common pet lizards should NEVER eat mushrooms, but that in the wild, there are some that dig up specific varieties and eat it