In his 1871 book, Descent of Man, Charles Darwin predicted that evidence would be found in Africa that would link modern man to apes. Finally, in the 1950s, such a discovery was made by Mary and Louis Leakey in what is today Tanzania. Since then, fossil evidence and DNA analyses have piled on the support. Today, there is no doubt as to our close kinship with chimpanzees, with whom we shared an ancestor about 6–7 million years ago. This mission is all about our evolution over those past 6–7 million years.
Watch the video and answer questions 1–2 below.
| 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 |
1-2. Click on the button below to answer questions 1-2. Remember to refer to the video if you are not sure of your answers.