Do Now: What comes to mind when you see this picture? What differences do you see between each figure?

Challenge: How did we evolve over time and how has that affected modern society? (Standard: LE 3.1a)

Homework: Print and Review Study Guide

Pan Troglodyt

es(2.2 Million Years

Ago)

Also known as the common chimpanzee or chimp for short

The pelvis of the chimpanzee was formed in a way which made it easier to walk on all 4 limbs rather than us humans which walk on our two legs

The femur is designed to help function with the pelvis. The chimp’s femur is larger and adjusts better to its pelvis.

The foot of a chimpanzee was designed to grip to trees since that was part of its habitat. As we evolved, we began to lose this trait since it was not necessary anymore.

The rib cage is more expanded and is larger. Over time, evolution took its course and made the rib cage smaller to what it is now.

The skull is very protruding and has a strong brow ridge

Ninety-eight and a half percent similar

Homo Neanderthalensi

s(O.5 Million Years Ago)

O Known for being in the Geico commercial “It’s so easy a caveman can do it!”

O Resembles more of a chimpanzee rather than a man.

O Has less distinct characteristics, and is becoming more human like

O Pelvis and femur have both evolved allowing humans to walk on two feet

O Rib cage is still broad but has reduced slightly in size

O The skull has become more human like but it still resembles a chimp and the brow ridge is still very distinct.

Homo Sapiens(25,000 Years

Ago)

O Has the closest characteristics to present day humans

O The skull resembles the facial feature of modern humans

O The pelvis has allowed them to walk properly like we do now

O Foot resembles ours today

O Rib cage has minimized over time and is slightly larger than the one we have today.

TRIVIA!PRIZE+2 O

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ST TEST

Q1: Which group is most related to us humans?

a) Pan Troglodytesb) Homo Neanderthalensisc) Homo Sapien

Question 1

Q2: Which fact about the Homo Sapien is false?

a) They have the closest characteristics from us

b) Has a slightly decreased protruding face

c) The placement of the pelvis has allowed them to walk properly

Question 2

Q3: Which type of human ancestor was used in the Geico commercials?

a) Pan Troglodytesb) Homo Sapienc) Homo Neanderthalensis

Question 3

Q4: Which human ancestor has the most distinct ribcage?

a) Pan Troglodytesb) Homo Neanderthalensisc) Present day humans

Question 4

Q5: Which human ancestor came first?

a) Pan Troglodytesb) Homo Sapienc) Homo Neanderthalensis

Question 5

Q6: Which characteristic allows the Homo Neanderthalensis to walk on two feet?

a) Ribcageb) Femurc) Pelvis

Question 6

Q7: Which percentage correctly describes how closely related chimpanzees are to humans?

a) 98.5%b) 99.4%c) 96.7%

Question 7

Q8: What does the suffix –OLOGY mean?

a) Humankindb) Studyc) Evolution

Question 8

Q9: A Hominid is …

a) Our lineageb) A type of evolved humanc) None of the above

Question 9

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