I'm not a big fan of hybrid animals.  Flying squirrels?  Rats with long poofy tails are bad enough, but when they can fly they become downright repulsive.  Fish that can walk across land? Scary.  Fish that can fly? They just keep me from wanting to get into any kind of boat that's not armored.  Even if you don't agree with me you have to admit that this is kinda freaky: