On the attached sheet color all of the bones of the same type the same color on each organism. For example, color the humerous blue on the modern seal, the pterydactyl, etc. This will allow you more easily identify individual bones at a glance.
Now compare the limb of each organism to a human arm. You donít have to describe the differences of every bone between the two species, just the most obviously modified or different. Some guiding questions you might try to answer:
-Which bones are larger?
-Which are smaller?
-Which bones are new?
-Which bones have disappeared?
Try to use the anatomical terminology and
the scientific name of each bone when writing your comparisons.
A very minimal example:
A. The scapula of a seal seems more compact and thicker than a humanís. Also, the humerous of the modern seal is much shorter, but thicker than than of a human.... etc.
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