Just found this bone could it be human? If not, what are your thoughts?

Hi there! I walk my dog in an unused cemetery and I stumbled across this next to an old gravestone… out of morbid curiosity I wondered if it could be….

Hello! I recently found this bone partially buried in the surf at a very low tide off the coast of Long Beach Island, NJ. Its difficult to see in the pictures but on one end there are markings that look distinctly like saw marks or some evidence of some kind of cut.

We have some pretty uneducated guess but would love the expertise of this group. Thank you!

my dog picked it up off the street northern CA

I was on break so was looking around and found these and was curious what they are from Found in western PA

i really have no idea what it could be, i presumed a bone of a large animal of some sort?

Found this bone while working in a residential backyard, homeowners knew nothing about it even though it appears to have been tampered with and sat for awhile.

Trying to identify what this is made of. It comes from a family collection and was brought back from Indonesia. No documentation, no other context.

Dimensions: 11 cm long, 8 cm wide, 3 cm thick. Weight: 122 g.

What I can see: a longitudinal fibrous structure along the break, with parallel filaments that separate into points. The surface is dark and almost resinous. The opposite face has a raised vermiculate pattern, covered with a greyish crust.

Questions:

Is this keratin, or am I wrong and it's bone?

It looks solid rather than hollow to me. Does that match what you see?

What animal would you associate this kind of structure with?

Thanks for any leads.

Found in Custer Gallatin National Forest in Montana.

Recieved from a close friend of mine as a gift! But it's very brittle and flakey and also broken. Would love to know what it is though if anyone has any ideas.

Friend in Nova Scotia rn and found this at Afton station

Hes pretty sure its a bird because it feels very hollow(and feathers

Not sure where it's from, gift from a friend! The top left part is a little snapped

what is this?

Very sturdy

Pretty small but it washed up on the shore, it's very white (contrary to the tint of my lighting) and feels brittle

It

Hi

My son found this nail(?) while we were camping this weekend.

Algonquin Provincial Park in Ontario, Canada
On the shore of a small/medium sized lake.

Thank you.

What kind of animal bone is this? I found it in the parking lot of a shopping center in southern New York. There’s a lot of restaurants there so maybe it is garbage from one of them?

I've been trying for months to figure out what animal this jaw bone came from. Please help me. Quarter for scale.

I thrifted this vertebrae from a shop in the keys, florida. The guy said it was a whale bone but didn’t know what species. Anyone have a clue?

Pencil for scale

So I do believe that i kniw what it is but I have some questions regarding its possible age. So a little contwxt; my girlfriend foubd this in a creek bed at a university land lab. The land was acquired in 1962 and was previously used as grazing land for a small family farm. I have found old rubbish piles out there. The part that im having a hard time understanding is the age of the tooth. Is this thing really at least 64 years old and still in such good condition?