Black cats are black because of high levels of eumelanin pigment, and the gene that produces it is dominant. A kitten only needs one black gene from a parent to have a black coat.
Breasts are associated with sensuality due to their visual and tactile role in sexual attraction, and can generate orgasms through nipple stimulation; these are normal hormonal changes, often asymmetrical and hereditary, that indicate fertility and matur
Maple trees should be at least 30+ years old before they are tapped and a 40-year-old sugar maple tree will produce about 10 gallons of sap per season.
Every two minutes, we take more pictures than all humankind did in the entirety of the 1800s. (Bonus fact: Photography was invented in 1826, that's 200 years ago this year!)
