You'd be forgiven for mistaking this hawk moth for a hummingbird. Discover how convergent evolution has made two species look ...

The bee hummingbird is so tiny, it actually competes with insects for resources, as opposed to other birds. Oh, and it’s somewhat hyperactive, beating its wings up to 200 times per second.

TRANSCRIPT - [Narrator] The very smallest bird on Earth, the Bee Hummingbird. Barely larger than the bee it's named after, almost everything about this hummingbird is special.

When a fiery throated hummingbird approaches a flower to feed, its wings are beating at nearly 100 times per second. To the naked eye, its wings are moving so fast, they appear to be little more ...