Horse Evolution Lab

What does each dot on the graph represent

• Horse Group

• Time of Existence

• Span of Cheek Teeth

• Height

What is the scientific name of the present day modern horse?

• Eohippus

• Orohippus

• Pliohippus

• Equus

What is the scientific name of the oldest horse?

• Eohippus

• Orohippus

• Pliohippus

• Equus

When did the oldest horse exist?

• 80 Million Years Ago

• 75 Million Years Ago

• 70 Million Years Ago

• 1 Million Years Ago

What is the span of the oldest horse's cheek teeth?

• 17.6 cm

• 15.6 cm

• 4.7 cm

• 4.3 cm

What does the graph indicate has been happening to the span of cheek teeth through history?

• Cheek teeth span has gotten smaller

• Cheek teeth span has gotten larger

• Cheek teeth span has stayed the same

Where have scientists gotten these teeth span measurements from?

• Recorded data in old notebooks

• They just randomly guessed

• Fossil Records

• The horses told them

Which is the oldest horse on the diagram?

• Equus

• Pliohippus

• Mesohippus

• Eohippus

How many front toes did the oldest horse have?

• 1

• 2

• 3

• 4

Which is the modern day horse?

• Equus

• Pliohippus

• Mesohippus

• Eohippus