Shelby A. Ryan, University of Newcastle y Ryan R. Witt, University of Newcastle Why do sloths go slow? Nina, Sydney, aged 5 You’re right, sloths do move very slowly! Sloths live in tropical forests in South and Central America, and they actually move so slowly that algae grows on theirRead More →

Mario Borunda, Oklahoma State University Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com. Why does gravity pull us down and not up? – Gracie, age 9, Brookline, Massachusetts Gravity is the reason thingsRead More →

James Webb, Florida International University Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com. Why are planets round? – Daniel B., La Crosse, Wisconsin The ancient Greeks proved over 2,000 years ago that theRead More →

Brian Jackson, Boise State University Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com. Exactly how many stars are in space? – MeeSong, Brookline, Massachusetts Look up at the sky on a clear night,Read More →