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 nine species of howler monkey are the largest monkeys in the Amazon and other rainforests of the New World. Howlers have the distinction of being the loudest land animal in the world: Their territorial calls can be heard up to three miles away. Howlers live in family groups of up to 18 members.