A. ramidus, unlike modern hominids, has adaptations for both walking on two legs and life in the trees (arboreality).However, it would not have been as efficient at bipedality as humans, nor arboreality as non-human great apes. ARA-VP-6/500, "Ardi", Ardipithecus ramidus Discovered by a team led by Tim White in 1994 at Aramis in Ethiopia (White et al. What is the mode of locomotion of Ardipithecus ramidus?--How do we know?-Facultative biped-Arboreal locomotion also important-Hamstrings were not human like-Careful climbing adaptations present-Other than bipedalism, probably similar to Miocene forms.

swinging under branches. While that is a more efficient means by which to avoid predation relative to ardipiths climbing around in the trees, the latter were larger and heavier and thus were likely fairly safe. It uses evidence from the feet and forelimbs discovered in the fossil specimens. 2009; Gibbons 2009). The locomotion of Ardipithecus ramidus looks at the likelihood of bipedalism or what the alternative methods for movement could be.

Here I show that the foot of Ar.

Summary of Ardipithecus ramidus?

Ardipithecus ramidus, a hominin dated at 4.5 Ma, is thought to be an erect bipedalist (Lovejoy, 2009).

Ardipithecus kadabba was bipedal (walked upright), probably similar in body and brain size to a modern chimpanzee, and had canines that resemble those in later hominins but that still project beyond the tooth row. A later find of Ardipithecus ramidus kadabba toe bones possibly suggest a human-like gait (Wong, 2003). Ardipithecus ramidus is a species of australopithecine from the Afar region of Early Pliocene Ethiopia 4.4 million years ago (mya).

This anatomical montage of the pelvis uniquely defines Ar. About 45% of her skeleton was found, including most of the skull, pelvis, hands and feet, and many limb bones. ramidus and its locomotion. Ar. The 4.4 million-year-old hominin partial skeleton attributed to Ardipithecus ramidus preserves a foot that purportedly shares morphometric affinities with monkeys, but this interpretation remains controversial. The ancestral condition from which humans evolved is critical for understanding the adaptive origin of bipedal locomotion. We know that Ardipithecus ramidus was bipedal based on the presence of which of the following characteristics: a) foramen magnum is posteriorly located (i.e., toward the back of the skull) b) foramen magnum is anteriorly located (i.e., toward the front of the skull) c) absence of a valgus angle in the femur d) grasping big toe
Its age is about 4.4 million years.

Ardipithecus ramidus (4.4 mya) ... Their mode of locomotion is brachiation, i.e. Ardi is a spectacularly complete fossil. ramidus was less adept in the trees than are living chimpanzees, but was a more capable climber and clamberer than Australopithecus. This early human species is only known in the fossil record by a few post-cranial bones and sets of teeth.