Humans are cockroaches!!!

— Circa 8,000 B.C.: With an estimated world population of 4 million people, the Agricultural Revolution starts, bringing about increased population growth as nomadic hunter-gatherer communities transition to settlement and farming. — 1 A.D: The planet's population reaches an estimated 230 million people. — 1830: The planet's population reaches 1 billion people. — 1927: The planet's population hits 2 billion. — 1960: The planet's population reaches 3 billion. — 1974: The planet's population hits 4 billion. — 1987: The planet's population reaches 5 billion. — 1999: The planet's population reaches 6 billion people. Also this year, India's population reaches 1 billion. — 2008: The planet's population reaches 6.6 billion. For the first time in history, half of all people live in urban areas.