Arrange It!
As the video and passage explained, transitional fossils like Tiktaalik show how two groups of animals that may seem different from each other can still be related. Tiktaalik shares characteristics of the group that came before it in time and the group that followed.
In this activity, you will sort information on a concept map according to which of the three life forms (primitive fish, amphibians, and Tiktaalik) a characteristic best belongs. You may want to watch the video again (see below) or review The "Fishapod" Tiktaalik 
(PDF) before doing the activity.
Click "Arrange It!" to begin the activity. Your teacher will review the answers with you.
| Keyboard Shortcut | Action |
|---|---|
| Space | Pause/Play video playback |
| Enter | Pause/Play video playback |
| m | Mute/Unmute video volume |
| Up and Down arrows | Increase and decrease volume by 10% |
| Right and Left arrows | Seek forward or backward by 5 seconds |
| 0-9 | Fast seek to x% of the video. |
| f | Enter or exit fullscreen. (Note: To exit fullscreen in flash press the Esc key. |
| c | Press c to toggle captions on or off |
Transitional Fossil
