Aidan Burn, Tufts University Remnants of ancient viral pandemics in the form of viral DNA sequences embedded in our genomes are still active in healthy people, according to new research my colleagues and I recently published. HERVs, or human endogenous retroviruses, make up around 8% of the human genome, leftRead More →

Satdarshan (Paul) Singh Monga, University of Pittsburgh Health Sciences The liver is known for its ability to regenerate. It can completely regrow itself even after two-thirds of its mass has been surgically removed. But damage from medications, alcohol abuse or obesity can eventually cause the liver to fail. Currently, theRead More →

Michael A. Little, Binghamton University, State University of New York 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 do animals have tails? – Kristin M., age 11, Kansas City, Missouri Scientists haveRead More →

Braidee Foote, University of Tennessee 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 do cats’ eyes glow in the dark? Chloe, age 10, Barkhamsted, Connecticut Cats and many other animals, including mostRead More →

why do we bleed

Mikkael A. Sekeres, University of Miami 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 do we bleed? – Michael, age 9, Seattle, Washington “Ouch!” I cried out, looking down at where myRead More →

Or Graur, University of Portsmouth Will time ever stop? – Casandra, aged 11, Epsom, UK Time began when the universe did. How – and if – the universe ends will determine whether time will end as well. We think the universe started out squeezed into an infinitely small space. ForRead More →