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Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.
The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
![Relationship between fruit radius and beak length in populations of native and introduced species of](https://biology-forums.com/gallery/47/medium_33_31_08_11_2_12_19_16231398.jpeg)
![Muskox populations remain in the Arctic all year, though they migrate to higher elevations in the wi](https://biology-forums.com/gallery/47/medium_33_22_09_11_9_37_27_1803362.jpeg)