 good morning John I'm headed to the University of Montana you can see it down there to see a cool thing that's where I'm going okay hi I made it this is Callie you might know her from youtube.com slash eons this is Tuna who makes SciShow most days he got your name on the door I do where are we we are in the University of Montana paleontology center collections room this is the collections room it's back there I mean I'm looking at this table and like at least half of the things are not possible you see in the case okay what's your biggest fossil probably that job upstairs job you can't fit anywhere it doesn't fit anywhere else but in that case upstairs look at it go obviously I try to keep the heavier stuff on the lower level let's do this these are all bits of mammal mammoth me they are mammals these are like tips of toes oh it's lighter way lighter than I expect yeah so this is all like in the thousands of years old does that make it lighter it does it there's less time for the mineralization process to occur these are horse horse bits a bunch of horse bits the horses we have here now were imported yes from Europe but we did have horses once yes we had the og horses horses started here and then left so the weird cutoff date for a fossil is 10,000 years right it's completely arbitrary it's just like somebody was like a lot of the big charismatic made of megafauna was extinct by about 10,000 years ago however mammoth hung on until about 4,000 years ago in high arctic islands so that means when the great pyramids of Egypt were being built they were still mammoths hanging out in the Arctic Circle this is so cute yeah it's a was it a baby or was it just really little and do anything might have been sabertooth teeth like like sabertooth like tiny sabertooth chihuahua dear I can't even imagine there's so much cute stuff all this stuff was living breathing had cells yeah you never think about like sabertooth kittens they had to have been yeah right stupid cute there's little teeth and their teeth of isolated teeth of rodents rodents how is that different from just sand my favorite specimen your favorite specimen in the whole collection up there top five on the outside you can tell that that's a fossil but when you cut it open it just look at the pattern it's just so neat it's either a sponge or a hadri zone oh okay so it's like a soft thing mm-hmm but it had an internal structure do you have any poop do we have poop yes we have no triassic poop I can't believe you don't know where the turds are I know and I just got them out the other day it's not turds I got my poop we have some really amazing soft body preservation what is that thing it's like it's terrible it's like more like a hell warthog what sounds worse the top part was what was eroding out you can like it has lichen still on it and then you asked me about all the specimen is it bacterial mat it is yeah that's so cool from Australia of course and it's like 2.75 billion this is what life was so weird to think about what Earth was like when it was just a just a baby yeah a few months ago Cali my friend Blake and I started a YouTube show called eons which is basically the story of all life on earth but walking around this museum with Cali I realized it's different for her because she spends so much time with these objects I got to see her see past the bones into the animals and organisms as they lived in their ecosystems in the deep past and I think that really comes out when she's talking about this stuff thanks so much to Cali for the tour and if you want to check out eons I promise it is fascinating and weird and amazing John I'll see you on Tuesday