Original: Goodfellow's Tree-kangaroo (Dendrolagus goodfellowi), also called the Ornate Tree Kangaroo, belongs to the family Macropodidae, which includes kangaroos, wallabies and their relatives, and the genus Dendrolagus, with eleven other species.
Simplified: Goodfellow's Tree-kangaroo (Dendrolagus goodfellowi), also called the Ornate Tree Kangaroo, is an animal in the biological family Macropodidae, which includes kangaroos, wallabies and their relatives, and the genus Dendrolagus, with eleven other species.