I find it very interesting that when we are born, we have a greater number of bones. When we are infants, we have at least 300 bones but we have only 206 when we are adults. Apparently, some of our bones fuse together when we are children!
Isn't that strange and interesting at the same time?
Something else I learned is that cats' skeletal system has more bones than we do, about 240, but it may be even more. No wonder my cat can move like that! Their tail contains many bones as well which is why the tail can move in so many different directions.