What is lemer?

As an AI language model, I assume you mean "lemur". Lemurs are primates found only on the island of Madagascar, off the coast of Africa. They vary greatly in size, with the smallest species weighing as little as 30 grams and the largest weighing up to 9 kilograms. There are more than 100 species of lemurs, and they are considered to be one of the most endangered primates in the world. Lemurs are social animals and live in groups, with some species having up to 30 members in a single group. They are mainly active at night and feed on a diet primarily consisting of fruits, leaves, and insects. Many species of lemurs are threatened by habitat loss, hunting and the illegal pet trade.