Bonobos “smile” when they’re stressed, but also when they’re playing. these endangered African apes are only found in the congo basin.
Photograph by Sergey Uryadnikov, Shutterstock
Trees in Washington State’s Hoh Rain Forest can live to be a thousand years old.
Photography by 2009fotofriends, Shutterstock
Poison dart frogs live in the rain forests of Central and South America.
Photograph by Dirk Ercken, Dreamstime
When startled, the green basilisk lizard of Central America can run across the water's surface.
Photograph by Visuals Unlimited, Inc./Joe McDonald, Getty Images
Living in rain forests from Mexico down to South America, a kinkajou uses its long tongue to reach inside beehives and flowers to retrieve tasty snacks.
Photograph by Photoshot License Ltd, Alamy Stock Photo
Northern Brazil is dominated by the Amazon River and the jungles that surround it.
Photograph by Jaysi, Dreamstime
Adult red-eyed tree frogs are bright green with many other colors mixed in.
Photograph by Dirk Ercken, Dreamstime
Mountain gorillas live in the lush forests of Central Africa. These critically endangered apes can climb trees, but are usually found on the ground.
Photograph by GUDKOV ANDREY, Shutterstock
With maximum temperatures of over 200 degrees Fahrenheit, the Boiling River, located in the Peruvian jungle, is not quite at boiling point, but it's hot enough to poach an egg!
Photograph by Andrés Ruzo, Nat Geo Image Collection
Kapok tree blossoms are a good source of nectar for bats and bees in the Amazon rain forest.
Photograph by Cristina Stoian, Shutterstock
Lianas vines are found throughout tropical rainforests. They can grow to be 3,000 feet long!
Photograph by Dr. Morley Read, Shutterstock
Around 40,000 plant species grow in South America's Amazon rain forest.
Photograph by Pablo Hidalgo, Dreamtime
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Racing for Light
Rainforests are lush, warm, wet habitats. Trees in the rainforest grow very tall because they have to compete with other plants for sunlight. Kapok trees, which are found in tropical rainforests around the world, can grow to 200 feet. The tallest trees spread their branches and leaves blocking the light from the trees below, and creating a canopy over the forest. When one of the big trees dies and falls, the opening lets in more sunlight so that a smaller tree can grow and take its place.
The rainforest has four layers. The emergent layer is made up of the very tallest trees that rise higher than the rest of the forest. In the next layer, the canopy, the leaves and branches of the trees all touch one another or are connected by vines. Most animals in the rainforest live in the canopy. The layer below the canopy is called the understory. Small trees and plants that do not need much light grow here. The last layer is the forest floor where only a few plants grow because it’s so dark.
Famous Rain Forests
There are rainforests in Africa, Asia, Australia, and Central and South America. The biggest rainforestt is the Amazon rainforest. It’s about the size of the contiguous United States, which doesn’t include Alaska or Hawaii. More than half of it is in Brazil, but parts are in several other South American countries, including Ecuador and Bolivia. The next biggest rainforest is the Congo in Africa. Parts of the Congo can be found in several other countries too, including the Democratic Republic of Congo and Cameroon.
Most rainforests are found along or near the Equator, where it tends to be hot. But some rainforests grow in temperate regions where it’s cooler. Hoh Rain Forest in Olympic National Park on the Pacific northwest coast of North America is an example of a temperate rainforest. Like tropical rainforests, temperate rainforests get lots of, well, rain.
Not Just Trees
Many kinds of plants grow in rainforests. Lianas are thick, woody vines that grow up the trees. When these vines get to the top of the trees, they spread to other trees and form a network of vines over the forest below. Orchids, bamboo, and bromeliads are other rainforest plants.
Trees and other plants release water into the atmosphere—something called transpiration—then the water falls back to Earth as rain. Rainforest trees can release a lot of water, up to 200 gallons each year. The water forms a thick cloud-cover over the rain forest, so it is always warm and humid.
In some rainforests it rains more than an inch every day! Rainforests help to stabilize the climate of the world not only by making rain but also by absorbing carbon dioxide. That’s good because too much carbon dioxide in the atmosphere can make the planet too warm.
An Abundance of Animals
More than half of the world’s animals live in the rainforest. Vampire bats and anacondas live in the rainforests of South America. Bengal tigers and orangutans live in Asia’s rainforests, and chimpanzees live in the rainforests of Africa. Lots of smaller animals live in rainforests too, including dragonflies, tree frogs, and at least hundreds of species of ants. Many of the plants and animals in the rainforest haven’t even been discovered yet!
Text by Avery Hurt
Nature Boom Time
Hoh Rain Forest - Ep. 7
In this episode of Nature Boom Time, Charlie and his team spend a few days in the Hoh Rain Forest in Olympic National Park. Explore with them to find out why a rain forest exists in the United States!