Indris are large, tree-dwelling primates with black and white fur. They have a long, white mane on their heads, and their tails are very short. Indris are herbivores, and their diet consists mainly of leaves, fruits, and flowers.

The indri (Indri indri) is the largest species of lemur, and it is also the largest living strepsirrhine primate. It has an average weight of about 6.5 kg. It can weigh up to 9.0 kg to 9.5 kg and perhaps up to 15 kg. It has a head-body length of 64–72 cm and can reach nearly 120 cm with legs fully extended.

The indri indri is found only in the rainforests of northeastern Madagascar. Indris are social animals that live in groups of up to 10 individuals. Each group has a dominant male and female. Indris are monogamous, and pairs mate for life.

Indris are an endangered species, and their populations are declining due to habitat loss and hunting. However, there are a number of conservation efforts underway to protect these amazing creatures.