Final answer:
Australopithecus anamensis lived about 4.2 million years ago and displayed a combination of ape-like and human-like characteristics. It had smaller canines and molars than apes, but larger than those of modern humans. It possessed prognathic jaws and likely demonstrated both tree-dwelling and bipedal behaviors.
Step-by-step explanation:
Australopithecus anamensis lived about 4.2 million years ago. It is one of the early species of Australopithecus, commonly referred to as australopiths. Although less is known about A. anamensis compared to other species, it is believed to have had a mix of ape-like and human-like characteristics.
For example, A. anamensis had a combination of smaller canines and molars compared to apes, but larger than those of modern humans. Its brain size was similar to that of a chimpanzee. It had prognathic jaws and was likely both tree-dwelling and bipedal.