Scientists tracking blind Mexican cavefish uncover a striking evolutionary reversal where existing brain circuits are rewired via dopamine to flip behavioral responses to light.

Scientists have long known that the DNA code in genes is not the only way to pass genetic traits from parents to offspring. "Epigenetic" marks—chemical modifications to DNA that don't change the DNA ...

For a child diagnosed with neuroblastoma—the most common infant cancer, occurring when early nerve cells grow out of ...

A major mouse study found that some inherited traits are passed down through epigenetic changes that break the classic rules of genetics. Researchers discovered hundreds of cases where these chemical ...

There are around 30 trillion cells in your body and about 1 per cent of them get replaced every day. But this process is far from perfect. The DNA in new cells contains many mistakes, or mutations: ...

As I am writing this, my DNA is changing. And, as you read this, so is yours. People tend to assume that the genes we inherit from our parents are a fixed blueprint for our growth and development, ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Inheritance and estate taxes—sometimes dubbed “death taxes”—remain one ...

Laura Oliveira fell in love with swimming at 70. She won her first competition three decades later. Longevity runs in her family. Her aunt Geny lived to 110. Her two sisters thrived and were mentally ...

Why do some people live to 100 while their sibling dies decades earlier? Is it luck, lifestyle, or something written into their DNA? Relative to many other species, humans are particularly long lived, ...

Mendel’s monastery garden experiments went largely unnoticed during his life, but their implications would ripple through science decades later. Gregor Mendel, Austrian botanist and founder of ...

Lurie's Children's Hospital of Chicago has a new department thanks to an $11 million investment, according to an announcement released Wednesday. The multi-million dollar gift, from Don and Anne ...