Frogs can indeed scream, and this high-pitched screech is an incredibly smart defensive tool against predators.

Dogs can also cry happy tears, according to a study published today (August 22) in Current Biology. Although the animals’ eyes don’t overflow, they well up when they’re reunited with their owners ...

Are human beings the only animals that produce tears when they cry? Paul Verges ... When lightning strikes a body of water, how far can the electric current travel and how long will the water ...

Anyone who has ever noticed tears in their cat's eyes has probably wondered, Can cats cry? Read on to find out the answer. If you’re like most cat parents, you’d give almost anything to keep ...