Presentation is loading. Please wait.

Presentation is loading. Please wait.

What can be Learned with

Similar presentations


Presentation on theme: "What can be Learned with"— Presentation transcript:

1 What can be Learned with
Evidence from Fossils?

2 Scientists have known for a long time that life on Earth began in water. After over 3 billion years, animals (amphibians) were moving from water to land.

3 But finding the fossil evidence for that transition was difficult.

4

5 The scientists who discovered… …Tiktaalik
…Tiktaalik

6 Glyptolepis From fins….

7 Panderichthys … to one bone, two bones, two blobs…

8 Tiktaalik … to one bone, two bones, sort of blobs and digits…

9 And others … with one bone, two bones, lots of blobs and digits.

10 Look familiar? Do you see a pattern here? This approach in finding evidence for the common ancestry between living organisms is referred to a comparative anatomy.

11 Is there evidence in the diagrams to indicate these organism have a common ancestor? Use comparative anatomy to answer this question. Then match the diagram letter to the type of animal. SPuD: B A D C Animal word bank: bird dog human whale


Download ppt "What can be Learned with"

Similar presentations


Ads by Google