A call to reason
Motors revolving 1000 times a second
Peacock
The efficient use of oxygen
The marvelous water
Puma
The pressure tanks in trees
Ostrich
Lions
Seeing the facts and evidence more clearly
Elephants
The signs in our bodies
Dragon fly
Cheetah
Birds
Antelope
Animals cold light
Animals treat themselves
Variety in living creatures
The skeleton
The heart
The hands
The fur of polar bears
The design of the eagle eye
The five senses
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