ears

I posted a couple weeks ago about my Nigerian Dwarf x Pygmy goat, Mario. His ear kept bleeding, and it was supposed his twin brother being housed with him, bit Mario on accident. Now there's a big dent on the tip of his ear and blood on the same side of his face. Could this be a small predator...

My goat, Mario, is a Nigerian Dwarf and Fainting Goat crossed buck. He is about 6-7 months old, and is housed with his twin brother, Vinnie. I recently noticed that the tops of his ears are bleeding. What is it? How can I help it?