So, I am late. Again. But I did take this picture on time. Does that count?
This is the skeleton of a horse. Do you see that hind leg? The lower portion? Just above the hoof? Do you see those tiny side bones and how they sort of fuse into the larger center bone? (If you would like me to use the anatomically correct terms for these bones, please don't hesitate to send me a message* :-) Well, where those side bones fuse into the center bone - that's called a button. The same is true for the front leg.
True story. That's the new thing you learned today.
*They are metatarsals, btw. The ones that fuse on the sides are II and IV, and the main one is III.