An unusual type of fish that can walk and breathe air develops quite differently when it is raised on land, rather than in water. The study holds clues to a pivotal moment in animal evolution, when the first creatures moved out of the water and onto land.
Past calculations made an assumption about Earth's layers that doesn't hold up, meaning if a person dug a tunnel through the planet, they could fall through to the other side quickly, though they could get sucked back in at the other end.
explores the wonder and beauty of Earth through news, features and images. Our
team of experienced science reporters and editors explain the latest
discoveries, interviewing expert sources to help explain how the world works.
We also feature articles about scientific exploration and adventures, plus lots
of imagery, so you can explore the planet, from top to bottom, from the sky to
mountains to the depths of the oceans, every day.
We were unable to fetch any YouTube videos at this time. Please try again.
Videos are visible only to people they've been shared with.
We were unable to fetch any videos at this time. Please try again.