Bee Hummingbird

The Bee Hummingbird, which is only 2 inches tall and weighs a little 2 grams, triumphs over other members of the hummingbird family, which is known for its diminutive size. Their nests are around the size of a quarter and can hold eggs that are about the size of a coffee bean. In terms of weight, each bee hummingbird is about the size of a cent. They are hardly larger than the typical bumblebee, or to put things in a more naturalist perspective. They are unfortunately prey for the same creatures that would eat bumblebees because of their size, most notably mongooses, wasps, frogs, and spiders.

These tiny birds' hearts beat at an astonishing 80 beats per second on normal, but during mating season, that rate can more than double. Given that the bee hummingbird must consume up to 1500 flowers each day for food, they cannot afford to waste that energy. It's not simply that the bee hummingbird is hard to spot because it's so little. It also requires taking a trip to Cuba. This isolated island nation is also the only known habitat of the species.