Sharks don't have bones. They are a special type of fish known as "elasmobranchs", which translates into fish made of cartilaginous tissues. Even though sharks don't have bones, they still can fossilize. As most sharks age, they deposit calcium salts
The DESI project traced cosmic structure growth over 11 billion years, validating Einstein’s gravity at large scales and refining dark energy models. It also set new limits on neutrino mass. Using data from 6 million galaxies, DESI creates the most pre
If you were to lay out all the blood vessels in the human body end to end, they would stretch over 60,000 miles. That's enough to circle the Earth more than twice!