How we came to be: Scientists get first look at the evolution of early complex animals

Scientists have discovered fossils in China that reveal a crucial transition from simple to complex life on Earth.

Kids may be more likely to get the new ‘Cicada’ variant of Covid-19, scientists say. Here’s what to know about BA.3.2

A heavily mutated variant of the virus that causes Covid-19 appears to be affecting primarily children, scientists say, ...