Spotting these cute, furry animals is not only good fun ... seeking habitats with clean water and a healthy fish population. High on the food chain, river otters eat fish, clams, snakes, turtles ...

“Inherently, it’s like Cartman from ‘South Park,'” Smith told Fox News, adding that it’s one of his favorite fish. “They’re really cute. They’re fun. These guys are best known for ...

But for an almost perfectly spherical fish like the adorable little lumpsucker, life is rather more complex. For him, being laughably unmaneuverable is a serious hazard. Its solution? Suction ...