How many neurons are in the human brain?
The human brain contains about 86 billion neurons.
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- What are the most active muscles in the body?
“The eye muscles are among the most active muscles in the body.”
Reference: American Academy of Ophthalmology
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Chameleons can move their eyes in two different…
Chameleons can move their eyes in two different directions at the same time.
How many muscles are in the tongue?
The tongue is made up of eight muscles.