Final answer:
Orrorin tugenensis is considered a hominin that lived around 6 MYA and its anatomical features suggest bipedalism, indicating it likely lived in a woodland environment that supported both arboreal and terrestrial movement.
Step-by-step explanation:
Orrorin tugenensis and Its Habitat
Based on paleoanthropological evidence, Orrorin tugenensis, which was discovered in Kenya in 2001, lived approximately 6 million years ago (MYA). Orrorin is considered to be a hominin, attributed to its anatomical traits indicative of bipedalism. Particularly, the morphology of its hand phalanx along with a larger femoral head and thicker dental enamel suggests an adaptation to a habitat different from that of quadrupedal apes. While the specific habitat is not precisely known, the analysis of Orrorin's morphology, compared to other primates, implicates an environment that could support bipedal locomotion—most likely a setting with trees suitable for climbing as well as open spaces for walking upright. Modern primates, like chimpanzees and orangutans, inhabit various types of forests, highlighting the diversity of environments in which primates have thrived. Hence, it is reasonable to infer that Orrorin tugenensis lived in a woodland environment, which would have provided opportunities for both arboreal and terrestrial locomotion.