#300 How do hummingbirds flap their wings so fast?
How do hummingbirds flap their wings so fast? By having very strong, fast twitch chest muscles, by twisting their wings instead of flapping them, and by being able to use…
How do hummingbirds flap their wings so fast? By having very strong, fast twitch chest muscles, by twisting their wings instead of flapping them, and by being able to use…