Quick Answer. Butterflies eat by sipping nectar and other liquids through their proboscis, a tubular appendage that functions like a straw. The larvae of butterflies, called caterpillars, feed voraciously on plant material, especially leaves.
Tweet. While Americans comprise only 5 percent of the world population, we consume an incredible 50 percent of Big Pharmaâs drugs, as explained in Jeff Haysâ documentary film, Doctored. Make no mistake. These drugs are meant to keep us imprisoned in poor health, not heal us. Itâs time to kick the drug habit America.
Below are the key figures for United States of America (USA) population in 2016: 1  4,070,119 live births. 2  2,661,729 deaths. 3  Natural increase: 1,408,390 people. 4  Net migration: 1,023,990 people. 5  160,669,833 males as of 31 December 2016. 6  164,787,883 females as of 31 December 2016.