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Studying Hominids
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Activity 8: Studying Hominids
Vertebrate Phylogeny
Activity 8: Studying Hominids
Introduction
Read the introduction.

A lineage is a series of populations of a
single species or several species
descended from a common ancestor.
Activity 8: Studying Hominids
Challenge

How do biologists study the
evolutionary relationships of
hominids?
Activity 8: Studying Hominids
Skull Measurements
Activity 8: Studying Hominids
Procedure
Cranium Comparisons
Skull
Scientific name
number
Common name
1
Gorilla gorilla
Gorilla
2
Pan troglodytes
Chimpanzee
3
Homo erectus
---
4
Homo neanderthalensis
“Neanderthal”
5
Homo sapiens
Modern human
6
Australopithecus boisei
“Zinj”
Activity 8: Studying Hominids
Procedure
Activity 8: Studying Hominids
Procedure

Based on your data and the information in
the reading, what conclusions can you
draw about the relationships between the
six species?
Activity 8: Studying Hominids
Procedure
Activity 8: Studying Hominids
Procedure
Return to Student Sheet 3.1, “Ideas
about Evolution”
 Add information from this activity or a
previous activity to support whether any
of the statements are correct or
incorrect.
Activity 8: Studying Hominids
Analysis 1

Suppose you analyzed the DNA sequences for a
number of DNA segments in humans, chimpanzees, and
gorillas and you collected the data in the table below.
Explain how these data are related to the amino acid
data from Part B and how they explain the evolutionary
relationship between humans, chimps, and gorillas.
DNA Sequences in Humans,
Chimpanzees, and Gorillas
DNA Comparison
Sequence Difference
(%)
Human-chimpanzee
1.24
Human-gorilla
1.62
Chimpanzee-gorilla
1.63
Activity 8: Studying Hominids
Revisit the
Challenge

How do biologists study the
evolutionary relationships of
hominids?
Activity 8: Studying Hominids
Key
Vocabulary




evidence
evolutionary tree
hominid
lineage
Activity 8: Studying Hominids