See the deep blue underwater world at one of the Best Aquariums in the US. Visitors will find schools of fish, turtles and even sharks. Some aquariums offer exhibits dedicated to penguins and sea ...

Taking a crab trick-or-treating isn't a wise idea — it might pinch at the bowls of candy or suddenly scurry out of sight — and asking an otter to help you hang Halloween decorations is a no-go, seeing ...