Final answer:
Ardi, or Ardipithecus ramidus, is associated with the hominin species Ardipithecus. Ardi is believed to have been bipedal but also capable of quadrupedal locomotion in trees due to its reduced canine and opposable big toe.
Step-by-step explanation:
Ardi, also known as Ardipithecus ramidus, is associated with the hominin species Ardipithecus. Ardi was discovered in Ethiopia in 1992 and is estimated to be around 4.4 million years old, making it one of the earliest hominins. Based on its anatomy, Ardi is believed to have been bipedal but also capable of quadrupedal locomotion in trees. Ardi's reduced canine and opposable big toe are traits that suggest an early bipedal lifestyle.