The animal with the largest brain in proportion to its size is the ant.
Ants began farming about 50 million years before
humans thought to raise their own crops.
By combining force of numbers with organized aggression, ants have become the greatest insect killers on Earth -- even of their own kind.
Ants make up 1/10 of the total world animal tissue. The total biomass of all the ants on Earth is about equal to the total biomass of all the people.
Workers in an ant colony only live for about 45-60 days,
but a colony's queen can live up to 20 years.