Cats have fewer toes on their back paws than their front paws. Most cats have five toes on their front paws and only four toes on their back paws nudes
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!
Various observations of distant galaxies have shown that the universe is expanding at an enormous rate. Other data show that it is gradually cooling, leading to the possibility that the universe will end when it freezes.
Have you ever wondered why rats are always being used in laboratory experiments? Yes, rats are not only highly intelligent animals, but they also have great memories too. Rats are able to map out a room and will remember all of the routes to get around f
Ancient Roman concrete arches contained volcanic ash, which helped them self-heal when cracks formed by reacting with water. This made them incredibly durable, lasting for millennia.
