Where Did Curly Hair Come From? Biological An...

In this episode of Science Quickly, we start with a quick update on the Ebola outbreak surging in parts of Africa. Host Rachel Feltman is then joined by Scientific American’s senior desk editor for life science Andrea Thompson to discuss what rising temperatures mean for the FIFA ...  Show more

In this episode of Science Quickly, one of SciAm’s Young American Scientists, biologist Jaye Gardiner, explores how common viral infections may raise cancer risk—not just through genetic mutations but by reshaping the body’s “extracellular matrix” of molecules that support cells ...  Show more

It’s fairly strange that humans, unlike many other mammals, don’t have hair all over. Our lack of body hair and wide geographic distribution led to the variation of sun-protective melanin in our skin. For the hair that remains, why did some groups develop curls while others did n ...  Show more

It’s fairly strange that humans, unlike many other mammals, don’t have hair all over. Our lack of body hair and wide geographic distribution led to the variation of sun-protective melanin in our skin. For the hair that remains, why did some groups develop curls while others did n ...  Show more

Why do humans have most of our hair on our heads, not our bodies? Why do we have so many varieties of hair color, thickness, and curliness? Dr. Tina Lasisi is a biological anthropologist whose work explores these evolutionary mysteries. In this episode, she shares her research in ...  Show more

What does the Declaration of Independence have in common with Vincent van Gogh’s sketches? The ink used to produce them came from wasps. From pests to products, insects have played an enormous role in human history. Entomologist and animal behaviorist Barrett Klein encourages a h ...  Show more