Curious Kids: do all animals have belly buttons?

Alena Ozerova/Shutterstock Do live-born lizards have belly buttons, and do live-born reptiles have an umbilical cord? – Gaelle, aged 12, Bristol, UK What an interesting question! A belly button or tummy button is technically known as a navel or umbilicus. Humans have belly buttons because before we are born, weContinue Reading

COVID and your gut: how a healthy microbiome can reduce the severity of infection – and vice versa

Helena Nechaeva/Shutterstock A vast combination of microorganisms live in our gut, including bacteria, fungi and viruses. Collectively, we refer to this as the the microbiome. Despite their tiny size, these microbes have significant effects on our health and wellbeing. In fact, the microbiome is often referred to as the “secondContinue Reading