How many neurons are in the human brain?
The human brain contains about 86 billion neurons.
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- What is the largest internal organ?
“The liver is the largest internal organ, weighing about three pounds.”
Reference: Cleveland Clinic
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Can the liver regrow?
The liver can regenerate. When part of it is donated, both the donor's liver and the transplanted portion can grow back to nearly full size.
What is an "otter tail"?
The Labrador Retriever has a thick, rounded, tapering "otter tail" that works like a rudder, helping the dog steer while it swims.