Lemurs are often overlooked about the fact that they are from the primate family. Training a lemur requires a lot of patience and perseverance. We usually focus on apes or monkeys but lemurs are very smart and similar in some ways, they share the trait of opposable thumbs. They are able to learn patterns and even learn to use tools and many other things. It is good to know that lemurs cannot be potty trained and need to wear diapers when they are inside the house.