Take a guess

[Atlatlista]

It is definitely Giraffe shin bone. But how does it look the way it does?

By shin bone, you do mean tibia and not metacarpal/metapodial, right?

[adb]

A 'shin bone' is a tibia, yes. We've already established it's Giraffe shin bone, but why does it look like it does?

[osage outlaw]

stabilized?   Chewed on by a large carnivore?

[Atlatlista]

My guess - limb shaft fragment with exposed marrow cavity and grooves from hyena gnawing. 

[J05H]

I guess its burnt in some way, or from the ankle where the two leg bones come together.

[Atlatlista]

A 'shin bone' is a tibia, yes. We've already established it's Giraffe shin bone, but why does it look like it does?

Sort of.  The way giraffe legs are built, what most people would call the "shin" (the part right above the foot) is actually the metatarsal, whereas the tibia is the part that bends backwards towards an "elbow" type joint.  And that's for the rear leg.  If it's from the front leg, it's definitely not a shinbone, it's either a radius or a metacarpal.

[NeolithicMan]

I think you read the post about pooing on finished bows, an tested the tips!

[J05H]

I think you read the post about pooing on finished bows, an tested the tips!

  lol

[adb]

A 'shin bone' is a tibia, yes. We've already established it's Giraffe shin bone, but why does it look like it does?

Sort of.  The way giraffe legs are built, what most people would call the "shin" (the part right above the foot) is actually the metatarsal, whereas the tibia is the part that bends backwards towards an "elbow" type joint.  And that's for the rear leg.  If it's from the front leg, it's definitely not a shinbone, it's either a radius or a metacarpal.

I never said it was the font leg, you did. It is Giraffe shin bone, so yes it's from the back leg, but we've already established that.

[Atlatlista]

A 'shin bone' is a tibia, yes. We've already established it's Giraffe shin bone, but why does it look like it does?

Sort of.  The way giraffe legs are built, what most people would call the "shin" (the part right above the foot) is actually the metatarsal, whereas the tibia is the part that bends backwards towards an "elbow" type joint.  And that's for the rear leg.  If it's from the front leg, it's definitely not a shinbone, it's either a radius or a metacarpal.

I never said it was the font leg, you did. It is Giraffe shin bone, so yes it's from the back leg.

I didn't say it was, I just pointed out that "shin bone" doesn't mean anything when talking about giraffes.

[adb]

A 'shin bone' is a tibia, yes. We've already established it's Giraffe shin bone, but why does it look like it does?

Sort of.  The way giraffe legs are built, what most people would call the "shin" (the part right above the foot) is actually the metatarsal, whereas the tibia is the part that bends backwards towards an "elbow" type joint.  And that's for the rear leg.  If it's from the front leg, it's definitely not a shinbone, it's either a radius or a metacarpal.

I never said it was the font leg, you did. It is Giraffe shin bone, so yes it's from the back leg.

I didn't say it was, I just pointed out that "shin bone" doesn't mean anything when talking about giraffes.

Not my terminology, but you're not staying on track. Small hint... I got it from a buddy of mine who is a custom knife maker.

[J05H]

Stained giraffe shin bone? Possibly blood stained?

[Atlatlista]

Not my terminology, but you're not staying on track. Small hint... I got it from a buddy of mine who is a custom knife maker.

All right, my curiosity is too piqued at this point.  I'm going into my lab to go through the giraffe bones...

[adb]

Stained giraffe shin bone? Possibly blood stained?

It is stained and stabilised for knife handles, but like I said, the bone is naturally smooth. The bone does not naturally look this way. (Really BIG hint).

[J05H]

Heated Dye?