Rats have up to 70 whiskers on their faces, varying hugely in size and shape. Almost every mammal possesses whiskers, but these rodents are what we call “whisker specialists”, meaning they have super-sensitive, moveable hairs that they use to explore and sense their surroundings.
These days, it’s hard to know whom to trust online, and how to discern genuine content from fakery.
Using a computer powered by an off-the-shelf Intel Core i5-6600 processor, a FedEx employee from Tennessee has discovered the largest prime number known to humanity. At 23,249,425 digits long, it’s nearly a million digits longer than the previous record holder.