Emily Petsko

Emily Petsko

Emily Petsko is a former staff writer at Mental Floss. Her writing has appeared in Lonely Planet, The Guardian, and several lifestyle publications in Asia.

Red hair and freckles are two traits partially determined by genes.

Humans are now known to have between 20,000 and 25,000 genes, but researchers still have much to learn about these small segments of DNA.

Emily Petsko
Airfares are often cheaper on the holiday itself.

While we can’t promise that your journey to grandma’s house this year will be enjoyable, we know of a few travel tips to make it less stressful.

Emily Petsko