Enhancing one’s overall knowledge –-> spiritual, physical, intellectual, and emotional

God’s glorious handiwork

To “discern with the eye of oneness His [God’s] glorious handiwork, and look into all things with a searching eye.” - Baha'u'llah (‘Tablets of Baha'u'llah revealed after the Kitab-i-Aqdas’)

Question: Hummingbirds are known as the smallest birds. How many kinds and species of hummingbirds are in existence? What is the smallest hummingbird? Is it true that they can fly backwards and even upside down for short distances? What is their maximum speed?
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