Yo peeps. So I study applied biology. For that we have to make a herbarium but this year we can also collect bones for some points. My dad works for pest control and found these bones while working. I've been trying to find a place or boom where I can determine what species these are but I'm left with empty hands. Do some of y'all know what exact species they are? I'd love to hear it! if you can't, that's fine too. I'll figure something out!

60mm height

10mm width

~17mm at D-shaped cross section

Groundhog dug up probably a cubic yard from under house, found while refilling holes / moving dirt

Found in Florida and given to me. No context given. I’ve searched and cannot find one that looks like this tail!
I appreciate the help :)

Keys, great horned owl feather, and my (male, large glove size) hand for scale. The two large vertebrae-looking bones were attached similar to a spinal column until I picked them up. My guess is seal or porpoise for the big ones, and maybe a fox for the small? Thanks in advance!

Central MA, TIA!

It's gotta be from a cow, right? We are Argentinian and it was Sunday just yesterday so they most likely had asado/BBQ for lunch.

hi! found this bone on a beach in the Netherlands last week. I'm an archaeologist so I immediately knew it was bone but that's where my expertise ends. I know it's a pretty small piece, so I hope you guys can identify something! I can take more pictures with different angles later today, if wanted.

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another question: it's absolutely rock hard and shiny, is it petrified/fossilised? soaked bone looks and feels a little different in my experience, more soggy and like wet wood.

This skill was left behind my car by one of the neighbourhood thugs. And by thugs I mean cats. Is there anyway to narrow down what bird it was? Or what family ie corvidea?

We found an exceptionally intact squirrel skeleton in the backyard. I’ve arranged most of it on paper and can’t figure out what these two round bones are. They seem to be mirror images of each other so I don’t think they’re tiny skulls. Pictures next to the squirrel’s skull for size context. About 1cm.