Human Evolution: A Journey Through Time
H
u
m
an
evolution
Manish Kumar
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r
i
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e
h
o
m
i
n
i
d
s
.
Human
evolution
A.
History
B.
Important stages
in
human
evolution
C.
Theories
of
human
evolution
D.
‘Human
Characteristics’
E.
Are
we
still
evolving?
Histo
r
y
•
1856-Neander
Valley
–
Discovery
of
a
skull
that
was
not
quite
human
•
1859 –
Darwin
publishes ‘The
Origin
of
Species’
•
1871-
Darwin
predicts that
ancestors
of
humans
would
be
found in
Africa
•
Up
till
1930s
–
Humanity
evolved
in
Europe
•
1950s--1960s
–
Many
significant
fossils
discovered
B
C
D
A
A
B
C
D
Bush
model
Linear
model
•
1970s
–
present
–
more
fossils
–
molecular
t
e
c
hn
i
ques
–
‘tree
model’
of
human
evolution
Current
Controversy
6-7
m
y
old
fossil
Earliest
bipedal
hominid?
Sahelanthropus
tchadensis
Important stages in
human
evolution
1.
3.2
million
years
ago
2.
3
million
years
ago
3.
2
million
years
ago
4.
1
million
years
ago
5.
200,
000
years
ago
6.
150,
000
years
ago
"
H
o
m
i
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i
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"
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f
a
m
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l
y
,
H
o
m
i
n
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a
e
,
w
h
i
c
h
c
o
n
s
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s
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H
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c
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(
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,
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h
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h
a
r
a
c
t
e
r
i
z
e
h
o
m
i
n
i
d
s
.
3
mya:
Homo
habilis-
the
‘handy
man’
•
Habitat
:
open
terrain
•
Food
:
Scavenged
for
meat
•
Physical
characteristics
:
–
small
jaw
and
teeth
–
shorter
arms
–
increase
in
brain
size
(because
of
carnivorous
diet
and
mode
of
feeding)
–
capable
of
speech
Oldo
w
an
Tools
Made
tools
Human
migration
•
1.9
mya
humans
began
to
leave
Africa to other continents
2
mya:
Homo
ergaster
•
Habitat
:
dry
-hot
habitat
•
Food
:
scavenger
for
meat
•
Physical
characteristics
:
–
Tall
with
long
limbs
–
Smooth
and
dark
skin
•
Temperature
regulation
through
sweating
–
Narrow
pelvis
(lead
to
narrow
birth
canal)
•
Mothers
needed
support of
partner
and
group
to
raise
babies
•
120,
000
ya
•
Physical
characteristics
:
–
Eyebrow
ridge
small
or
absent
–
Prominent
chin
•
Tools
--antler,
bone,
stone
•
Clothing,
jewelry,
artwork,
musical
instruments
Ho
mo
sap
i
ens
Explore the fascinating journey of human evolution from the split from apes to present-day humans. Discover important stages, controversies, and key events shaping our understanding of the human family, Hominidae. Unravel the mysteries of our ancestral past and the characteristics that define us as hominids with tools, language, and culture.
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Presentation Transcript
Human evolution Manish Kumar
"Hominid" refers to members of the human family, Hominidae, which consist of all species from the point where the human line splits from apes towards present day humans. Habitual bipedal locomotion (movement on two legs), an upright position, and a large brain that has lead to: tool use, language, and culture characterize hominids.
Human evolution A. History B. Important stages in human evolution C. Theories of human evolution D. Human Characteristics E. Are we still evolving?
History 1856-NeanderValley Discovery of a skull that was not quite human
1859 Darwin publishes The Origin of Species 1871- Darwin predicts that ancestors of humans would be found in Africa
BC D A Up till 1930s Humanity evolved in Europe Bush model 1950s--1960s Many significant fossils discovered A B C D Linearmodel
1970s present more fossils molecular techniques tree model of human evolution
Current Controversy 6-7 m y old fossil Earliest bipedal hominid? Sahelanthropus tchadensis
Important stages in human evolution 1. 3.2 million years ago 2. 3 million years ago 3. 2 million years ago 4. 1 million years ago 5. 200, 000 years ago 6. 150, 000 years ago
"Hominid" refers to members of the human family, Hominidae, which consist of all species from the point where the human line splits from apes towards present day humans. Habitual bipedal locomotion (movement on two legs), an upright position, and a large brain that has lead to: tool use, language, and culture characterize hominids.
3 mya: Homo habilis-the handy man Habitat: open terrain Food: Scavenged for meat Physical characteristics: small jaw and teeth shorter arms increase in brain size (because of carnivorous diet and mode of feeding) capable of speech
Oldowan Tools Made tools
Human migration 1.9 mya humans began to leave Africa to other continents
2 mya: Homo ergaster Habitat: dry -hot habitat Food: scavenger for meat Physical characteristics: Tall with long limbs Smooth and dark skin Temperature regulation through sweating Narrow pelvis (lead to narrow birth canal) Mothers needed support of partner and group to raise babies
Homo sapiens 120, 000 ya Physical characteristics: Eyebrow ridge small or absent Prominent chin Tools --antler, bone, stone Clothing, jewelry, artwork, musical instruments
