There are some wooden letters superimposed on animals starting with the same letter. We got some for our kids. "L" for lion etc. It took a while to figure out but the "N" is a Nautilus
Well even though this Q. has been done many times, I can still give you narwhal, natterjack toad, Nepal tiger, newt, Newfoundland dog, New Forest pony, and 'Nellie the elephant' depending on how loose your terms are.