Coronavirus variants: Here's how the SARS-CoV-2 mutants stack up

By Live Science Staff  - Live Science

Omicron variant may have evolved in rats, one theory says

By Nicoletta Lanese - Live Science

The Omicron variant: What we know so far

By Yasemin Saplakoglu - LiveScience

How calories are calculated: The science behind your food

How sleep affects the brain

By Gavin Newsham  - Live Science

1st drug to treat genetic cause of dwarfism approved by FDA

By Nicoletta Lanese - Live Science

What are carbohydrates?

By Jessie Szalay , Scott Dutfield - Live Science

Natural selection has been acting on hundreds of human genes in the last 3,000 years

By Stephanie Pappas - Live Science

FDA authorizes Pfizer and Moderna COVID-19 booster shots for all adults

By Yasemin Saplakoglu - Live Science

Do babies cry in the womb?

By Jennifer Welsh - LiveScience