Making the paper: Chris Kintner.

The article discusses the study on the development of ciliated cells in the skin of the African clawed frog Xenopus laevis by Chris Kintner, a molecular neurobiologists, and his team in California. It is stated that the group observed that Xenopus embryos tended to float at the bottom of the culture media because of the cilia on the skin cells. The group realized that when cilia first form on cells in Xenopus skin, they tend to point towards the tail.