1. HUMAN ORIGINS
Natalia Ruiz 1º BACH B
Rosalía Segado

2. PRIMATE TO HOMINID
Hominids are a group of
arboreal primates whose
origins are in Africa, for at
least seven million years.
Humans are hominids,
but not all hominids are
human beings, only
belonging to the genus
Homo.

3. Characteristic of Hominids
 They move in a
vertical position
bipedal.
 Their palate is U-
shaped
 Their skull have a
large brain

4. The first hominids
 The appearance of the first hominids
appear to coincide with a cooling and
aridity that forced the withdrawal of
tropical forests and their replacement by
woody formations, rinsed and savannas.

5. Main pre-human species
 Ardipithecus ramidus, is the oldest hominid known better.
It is 4’5 millions old.
 Australopithecus anamensis, it has hominids
characteristics such as bipedalism and thick tooth
enamel, which allowed them to eat hard foods.
 Australopithecus afarensis, their brain was slightly higher
than that of chimpanzees. The pelvis and lower
extremities and have human aspect, which means
available to bipedal gait.
 Later hominids A. afarensis, they presented the axis of
the skull tour of a sagittal crest.

6. The humanization: the first
humans
 It is assumed that the first species of the genus homo had
a bigger brain and complex, with higher intellectual
abilities. Its appearance coincided with climatic
changes that caused a second phase of cooling
and aridity in Africa why are our first ancestors who
are no longer tied to a forest habitat and occupy
open spaces in Savannah.

7. HOMO HABILIS
 It is the first homo remains have
been found.
 His skull was clearly higher than
that of Australopithecus.
 Its teeth were similar to humans.
 It is assumed that homo habilis
began to lose body hair.
 Predominant in their diet hard
foods of plant origin, were not
meat eaters Systematic

8. HOMO ERGASTER
 His skull bigger and wider than that
of Homo habilis had a well
developed supraorbital arch and
small teeth adapted to a diet based
on meat and other animal fats soft
foods.
 The skeleton was very similar to
modern humans.
 His hand axes were worked in
tears. In his yacimienos bones
have been found with marks of
stone tools. Meat-eaters were
common.

9. HOMO ERECTUS
 This species arose 1 million years
ago and disappeared about
100,000 years ago in Java
400000 years ago and used the
fire, as evidenced by the
straight ash found near his
remains.
 His skull was more elongated
and thicker walls than that of
modern humans. Presented a
supraorbital rim and a very
marked depression postorbital.
His face was prominent, with
massive jaws and chin lacked.

10. HOMO ANTECESSOR
 In addition to being
hunter-gatherers,
practiced cannibalism.
Emerged in Africa. From
there he emigrated, via
Asia, to Europe and
arrived in the Iberian
Peninsula, where it
evolved to give rise to
Homo heidelbergensis.

11. NEANDERTALES Y
SAPIENS
 El hombre neandertal:
Appeared in Europe for over
300000 years ago and
disappeared 28000.
Had an average height of
1'65 and musculature more
developed than any current
athlete.
Although his skull was a
primitive, prints of his brain
lobes indicate that carrying a
modern brain.

12. DISCUSSED THE ORIGIN
OF MODERN HUMANS
 It is considered that the
antepasadoafricano
rodhesiensis omo of our
species. Appears in Africa
200,000 years ago, and is a
modern human who still has
archaic features. The modern
Homo sapiens appears also in
Africa about 160,000 years.
While European Homo
heidelbergensis gave rise to
Neanderthals in Africa
showed up <<us>>. In Europe
appears H. sapiens during the
last Ice Age, between 40000
and 35000 years.