It's called a "tardigrade" or "water bear". It's just one of many aquatic invertebrates on the planet, but it's unlike any other life form that scientists know of. Less than a millimeter in size ...

“A mama bear known as ‘Brett’ gave her cubs a ride across the river in Alaska’s iconic Katmai National Park and Preserve. It’s a cute sight, but also a convenient form of transportation for the little ...