human
biped
people A biped
A Kangaroo
The different between a man and a lion is that a man walks with two feet while a lion walks with four feet
The word which describes something that walks on two feet is "Bipedal" (Bi' meaning two, Ped'al from the latin Ped; the feet, to walk) A Bipedal creature is called a Biped. Similarly, something that walks on four feet would be called "Quadrapedal" (a Quadruped.)
The answer to this riddle is a man. In the morning of his life he crawls or goes on four feet, in the afternoon of his life he walks on two feet, and in the evening of his life he uses a cane and goes on three feet.
monkeys, kangaroos.
man kind
A bipedal primate is referred to as a great ape, or a hominid.
He crawls on all fours in the morning of his life, walks upright on two feet in the day of his life and walks with a cane in the night of his life. The answer is hidden in the question. It is human baby that walks on Four during babyhood, Two when he can stand and walk on two legs, in the evening of his life (old age) he is bent and takes a stick in his hand to walk on Three legs. (Read the play: Aedipus Rex by Sophocles.)
To find who walks faster, we can calculate their walking rates. The first person walks at a rate of 60 feet in 10 seconds, which is 6 feet per second. The second person walks 42 feet in 6 seconds, equating to 7 feet per second. Therefore, the second person walks at a faster rate.
The definition of a plantigrade is an animal that walks on the flat of their feet. Two examples are humans and bears!