Cuisine varies greatly around the world, but the basic ingredients that sustain humans are pretty similar. We eat a lot of corn, wheat, rice and other simple crops. Read on to find out which foods top the list of most important worldwide, listed by annual production and average yield in 2008.
Howler monkeys are widely considered to be the loudest land animal. According to Guinness Book of World Records, their vocalizations can be heard clearly for 3 mi (4.8 km). The function of howling is thought to relate to intergroup spacing and territory protection, as well as possibly to mate-guarding.
The bison is the heaviest land animal in North America and can run up to 65 kilometers per hour (40 miles an hour). During the 19th century American settlers killed up to 50 million bison causing their near extinction (they were hunted for various reasons, among them was that their tongue was considered a delicacy).