The Web is full of wonderful information, but sometimes it seems like there's too much stuff out there. Here are some links we have found that might be helpful for your search. If you don't find it here, take a look at our article How to Find What You Need on the Internet.
A perfect place to explore early humans. Watch the video narrated by paleoanthropologist Donald Johanson, or try some of the interactive activities.
Ask A Biologist is now part of the new NSF Science 360 radio channel. Check it out and the cool apps for your smart devices.