Did you know?
Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
Did you know?
Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.
A Tibetan wolf killed in 1938. Note the proportionately short legs
The flukes of a sperm whale as it dives into the Gulf of Mexico
Mixed dishes such as hamburgers and pizza are a major source of solid fats in the diets of Americans
Major Food Sources of Saturated and Trans Fats for Americans
Two complementary angles are drawn such that one angle is 10 degree more than seven times the ...
Estimated times of divergence of human and Neanderthal genomic