The term 'Monkeys and Apes' is a collective name for the group of primates known as SIMIANS. SIMIANS are characterized by their long arms, opposable thumbs, and forward-facing eyes. They are highly intelligent animals and can be found in many parts of the world. Monkeys and apes are two of the most well-known members of the simian family. Monkeys are typically smaller than apes and have tails, while apes are larger and lack tails. Both monkeys and apes are social animals and live in groups.