It looks like Olive might have groomed Simon a little too heavily, as he’s got a little superficial mark on his left ear that seems to have bled just a little bit (he’s not soaking in blood, or anything, but you can tell the area has very scant serosanguinous drainage). I’m convinced this wasn’t vicious in any way, as Olive is snuggled up next to him and I didn’t hear any scuffling (in fact, I’ve been in the same room with them all day long and I’d have known if they fought)–I think she just must have been overzealous in her grooming and nipped him. Or else he scratched it somehow (but on what? He’s a New Zealand White rabbit and has long, wonderful ears, but I don’t think this looks like a scratch). It’s hard to tell, but I will keep an eye on it to make sure it doesn’t become infected. Expect it’s all I can do, at this point, as he’s not bleeding copiously, there’s no obvious tears or anything like that–just a superficial tiny scratch-looking mark.