A new species that tells us something about humans origins was recently discovered deep inside a cave in South Africa. This discovery is a mystery in many ways. How did the bones get there? What is their significance? The bones are so deep inside the cave they were almost inaccessible; scientists had to climb down a steep cliff and crawl through a cave to collect them. This new species appears to have very small brains but similar feet and hands to modern humans. It has been named Homo naledi, the newest addition to the genus Homo. Where do they fit in the story of human evolution? Listen to hear more about this remarkable discovery.
Story Length: 4:50
Socrative users can import these questions using the following code: SOC-1234
September 9, 2015
4:17
When skeletons turn up, a lot of information can be found in the bones. Knowing how to read the bones is the job of a forensic scientist. Bones can help identify missing persons, solve a murder case, or help medical research. In the Bass Donated Skeletal Collection in Tennessee, there are thousands of donated skeletons that serve as silent teachers. People come from all over the world to study these bones and learn from the information hidden in them.
Read MoreJune 11, 2015
5:21
A new scientific tool can edit or change genes. It can target genes that cause problems, like disease, and snip them out of the DNA, sort of like scissors at a molecular level. The potential to change the human genome has some scientists celebrating and others worrying about the ethical implications. Listen to learn more about this technique and the debate it has provoked.
Read More