Moss on Atlantic Wall

This is some moss on the Atlantic Wall.
The Atlantic Wall is a wall that the Germans built in World War 2 just in case of invasion. On the top picture is a closeup of some moss on the Atlantic Wall. On the bottom picture is the Atlantic Wall zoom out so you can see whole thing. But it is not really the whole thing. It is actually just a piece brought to the New Orleans museum.

Cow Jaw

This is a jaw I found in the alley in my neighborhood. I think it is a cows bottom jaw. I am not sure what type of jaw it is. it is very hidden. who would expect a jaw in a alley?