The Amazon rainforest is a species-rich biome in which thousands of species live, many of which are endemic. To date, there are at least 40,000 different types of plants, 427 types of mammals, 1,300 types of birds, 378 types of reptiles, more than 400 types of amphibians, and around 3,000 types of freshwater fish known to be living in the Amazon.Animals of the Amazon rainforest - The Rainforest - MongabayAmazon wildlife, WWF

The Amazon rainforest covers , accounting for over 40% of the planet's remaining tropical forests.The Amazon's flora and fauna AMAZON - image, WWF Since 2000, rainfall has declined across 69% of the Amazon. The WWF estimates that 27% of the Amazon will be without trees if deforestation continues at its current rate.What animals live in the Amazon? And 8 other Amazon facts, WWF

Birds Roughly 14% of all birds on Earth are located in the Amazon rainforest. This percentage consists of around 1,300 known, distinct species, 20% of which are endemic to the Amazon. Approximately 11% of the birds found in the Amazon rainforest have been declared endangered as of 2025. This is due, in large part, to the wide-scale deforestation of the Amazon and subsequent habitat loss. Birds are crucial to the ecosystem of the rainforest, serving as seed dispersers, pollinators, and pest controllers. They tend to be especially sensitive to the environmental changes brought on by global warming and climate change, providing another layer of importance to conservation efforts. Some notable species of birds found in the Amazon include the Hoatzin, the Harpy eagle, and the Blue-and-yellow macaw.

The Hoatzin, scientific name Opisthocomus hoazin, is a unique species of bird that is only found in the Amazonian region. They are most remarkable for their way of digesting food. Hoatzins are the only birds that ferment the vegetation they eat, similar to the way a ruminant would in their gut. However, these birds possess a crop with a microbial ecosystem that ferments the leaves, buds, and other plants; the fermentation does not happen in their stomach. These birds spend most of their time in the trees and surrounding undergrowth of the swampy regions of the Amazon and Orinoco river basins. Hoatzins are not excellent fliers, but the juveniles will often jump from their nests into the water below to swim away from predators and other dangers.

Harpy eagles, or Harpia harpyja, are the largest Neotropical birds of prey. Their position as apex predators solidifies their classification as a keystone and umbrella species. Their prey primarily includes various two-toed and three-toed sloths, howler monkeys, spider monkeys, and capuchins; however, other animals such as armadillos, anteaters, and iguanas are also food sources for them. Harpy eagles are diurnal, meaning they are awake and active during the day, where they spend most of the time in the high canopy or hunting for food. These eagles share a unique characteristic with owls: an adaptation called a facial disk. Facial disks are a special circular arrangement of feathers around a bird's face that can be lifted and lowered to direct sounds to the ears for a keen sense of hearing.

The Blue-and-yellow macaw (Ara ararauna) is also referred to as a Blue-and-gold macaw; both names originating from their vivid plumage of azure blue on their dorsal side and golden-yellow ventral side. In the Amazon, Blue-and-yellow macaws are often found in the lowlands of the rainforest nesting in tree cavities, eating a variety of nuts and fruits, and communicating with other birds using their loud calls that can be heard for miles. These birds usually pair together in twos and mate for life.

Mammals

There are about 427 different kinds of mammals living in Amazon,Mammals, Amazon Aid Foundation with most of them being bats and rodents,Amazon mammals, WWF including the largest rodent in the world, the capybara, which can weigh up to .Amazon Mammals, The Rainforest, Mongabay As well as large predators such as the jaguar, the cougar and the maned wolf.

In the Amazon, mammals are found on ground, trees and the air. The jungle is filled with a diversity of different species. On the tallest trees one can find sloths, one of the most common mammals in the forest.Amazon Rainforest Mammals, Photos & Info, Thinkjungle.com

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