The term 'Jungle Group' can be broken down into two crossword solutions: APES (4 letters). APES are a group of primates that are closely related to humans and are found in tropical and subtropical regions of Africa, Asia, and the Americas. They are known for their intelligence and social behavior, and are divided into two main groups: the great APES and the lesser APES. Great APES include gorillas, chimpanzees, bonobos, and orangutans, while lesser APES include gibbons and siamangs.