I saw these today? Are they human?

Post's pictures

bones.jpg, 378.51 kb, 900 x 1600

bones3.jpg, 449.52 kb, 900 x 1600

bones5.jpg, 441.53 kb, 900 x 1600

without a scale bar it is difficult to say for sure, but from the shape and thickness I would say most unlikely to be human.

I am not a forensics expert, but some of the bones look like they have been cut into pieces rather cleanly. My guess would be that they are from a butchered cow or pig.