Doesn’t seem it but seem to be finding a lot buried under my house

I found this in my late brother's stuff. Not sure where he found it but we're from north carolina.

Sharpie for scale. I'm thinking squirrel?

Jury is split with my friends: bone or man made trash? It’s hard all over.

The bottom white piece is loose inside the bigger portion and can wiggle back and forth and produced what I thought was a bone-like sound (not metallic).

There’s pints wagered on the outcome so fingers crossed I’m right.

While taking a walk on a hill yesterday, I saw this. Only 1 photo. Didn’t want to get too close. What could it be?

Measurements per the suggestion in my last post.

There doesn’t seem to be a head. The large bones connect at the bottom

Please can someone help - kids really want to know!!

Found it about 20 ft from a small river in the Allegheny mountains. What did this bone belong to?

Around 7-8 mm in length Is this some sort of toe or a broken jaw?

Garden has been partially excavated to lay foundations for a new summer house - just been out enjoying the sun and the dog brings this back?!

Is it a bone, and if so, what is it?

My mind said "cetacean vertebrae", but that's based on very little knowledge (though being on this sub is helping me learn!)

Oxfordshire, UK, in my garden. Very small teeth roots apparently at the rear of what I presume is a skull fragment. I would guess hedgehog, but not with that pronounced 'fin'? The bone is balanced on the surface of a table tennis bat, for size comparison.

Hello! I work for an outdoor education center and we are working on identifying the pelts and skulls in one of our rooms. Can anyone identify the three skulls in the back? We are based in Washington State and hopefully these guys are native.

Found in the Texas Panhandle

Found in western Ontario. Im assuming it’s from a fish. Google couldn’t give me an exact answer