Size of the eye doesn't change with age. The average size of a human eyeball is 2.4 cm.
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The average diameter of a newborn human's eyeball is around 16-18 millimeters. This measurement will gradually increase as the child grows.
It is a myth that a mother dog will reject or harm her puppies if they are touched by humans. In reality, most mother dogs will not harm their puppies if they have human scent on them. It is important to properly introduce human touch to newborn puppies to help them become accustomed to handling and socialization.
Humans have an average gestation period (time of pregnancy) of 280 days.
The relationship between a humans pregnancy length and average life span is not so different than other mammals. It appears to be closely related to size.
Elephant poop can vary in size, but on average, adult elephants can produce about 100 pounds of feces per day. The poop is typically large in size and can measure several inches in diameter and several feet in length.
The average chimpanzee hand measures about 6-7 inches in length.