The term 'orangutans, for instance' can be summed up by the crossword solution 'APES, ' which is a four-letter word. APES are a type of primate that are closely related to humans and are found in tropical and subtropical regions of Africa and Asia. Orangutans are one of the most well-known species of ape, and are native to Indonesia and Malaysia. They are known for their intelligence and long arms, which they use to swing from tree to tree.