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Adripithecus ramidus is a chimpanzee-like hominid; it is also known as 

Ardi. Little is known about this species, but the best estimate is that 

they were around 3'11'' and they weighed about 110 pounds. They 

were omnivores, evidence of this if found on their teeth, specifically 

their canines. It is unsure if they were bipedal. They had divergent 

large toes and a rigid foot. It is thought that they may have walked 

upright and been able to easily climb trees. They lived around 4.4 

million years ago.

Australopithecus afarensis (Lucy's species) was 

around 3.85 to 2.95 million years ago in mainly 

Africa. Their brains were about 1/3 the size of 

that of a modern humans. They were bipedal and 

the females were smaller than the males, the 

average sized ranged from 64 to 92 pounds and 

they were between 3' 6'' and 4'11'' tall. Their 

facial features were ape-like in proportions. Yet 

unlike apes, they have small canines. They were 

physically strong and had long arms and curved 

fingers which enabled them to easily climb trees.

In southern Africa, from 3.3 to 2.1 million years ago, a species called the 

Australopithecus africanus resided. It was named in February 1925. It had 6 

lumbar vertebrae instead of the 5 that are found in modern humans today. It 

walked bipedally, but scientists have found evidence in the shoulder and hand 

bones that this Australopithecus africanus spent a lot of time climbing as well. 

They also exhibited a rounder cranium, a large brain, small teeth, long arms, a 

sloping face and a pronounced jaw. They were between 3'9'' and 4'6'' tall and 

they weighed between 66 and 90 pounds.

The Australopithecus anamensis was discovered in 

1965 by Harvard University, while they were on an 

expedition. It was bipedal and spent minimal time 

climbing. It hard large canines, parallel tooth rows, 

and their teeth had thick enamel on them. The 

females were about the same size as modern day 

female chimpanzees. The men exhibited sexual 

dimorphism and were most likely a lot larger than 

the females of the species.

The Australopithecus garhi was named in 1999 in 

an article of Science Magazine. It has been 

controversial from the start, due to the 

exceptionally small amount of fossils that have 

been found pertaining to the species. It is known to 

have had massive teeth and long arms. The 

possible height and weight for the species is 

relatively unknown due to lack of fossil evidence. 

Yet it is known that the species was a bipedal and 

that it most likely began to take longer strides. It 

was around about 2.5 million years ago.

The Australopithecus aethiopicus was first discovered in 1967 by the 

French. It had a v-shaped jaw, a small brain, a flat face, and no 

forehead. It walked on this planet from 2.7 to 2.3 million years ago. It 

was bipedal.

nThe Australopithecus boisei was discovered in 1959 by Mary Leakey and her 

team. They had the largest teeth of any hominid, the molars were exceptionally 

large in comparison to the molars. They had sexual dimorphism (females 

smaller than the males). They had massive jaws and a thickened skull. They 

were bipedal and were alive 2.3 to 1.1 million years ago.

The Australopithecus robustus was 

discovered by Dr.Broom in 1938. They 

lived from 1.8 to 1.5 million years ago. 

They were bipedal. They had massive 

flat or concave faces and their teeth 

were large and made for grinding course 

food. They ranged from 3'7'' to 4'4'' and 

they weighed from between 71 to 92 

pounds. There was sexual dimorphism, 

with that males being larger than the 

females. They also were some of the 

earliest tool users.

Homo habilis lived between 2.4 and 1.4 million years ago in Eastern 

and South Africa. It is also known as the "Handy Man" because it is 

thought to be the first stone tool maker. It is between 3'4'' and 4'5'' 

tall; also this species weighs around 70 pounds. It has a large brain 

case, a smaller face and teeth, long arms, and a prognathic face. It 

has few ape-like characteristics, but some still do remain, such as the 

long arms. It is a bipedal but it still retains its ability to easily climb 

trees.

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