12 Surprising Flightless Birds
Over the course of time, there have been many birds that decided to give up flight and stick to the ground. Unfortunately, the result for many of these species was being wiped out, as they became easy pickings for humans and the animals that traveled with them, such as dogs, cats, and rats. Those that survived did so because they were too big (e.g. the ostrich) or too remote (e.g. the penguin) to be easy prey to new predators....