Scientists such as anthropologists divide hominids into three different types based on their body shapes and lifestyles. The first type of hominids are referred to as Homo habilis, which means ‘person with abilities.' It is believed that Homo habilis lived until about 1.5 million years ago.
The second type of early human living on the Earth was Homo erectus, which means ‘person who walks upright.' Homo erectus lived on the Earth until about 150,000 years ago.
The final type of hominid living on the Earth is Homo sapien. Homo sapien means ‘person who can think’. All humans living on the Earth today are Homo sapiens.
Imagination is a good horse to carry you over the ground--not a fluying carpet to set you free from probability.
Until 1896, drivers in Great Britain had to warn of their presence by having a person precede their car on foot, waving a red flag.