10 Fascinating Ways Animals Communicate Everyday
8. Dolphins Communicate in Other languages

Dolphins are famous for their intelligence and complex social behaviors, but here’s something even more fascinating—they seem to "speak different languages" while asleep. Researchers have observed dolphins producing sounds during sleep cycles that closely resemble whale songs, even though they don't typically mimic these calls when awake. What makes this behavior so intriguing is that it appears to be subconscious, much like how humans might replay fragments of conversations or experiences during dreams. The dolphins' sleep sounds may represent a form of mental processing, possibly linked to memory consolidation or even problem-solving, much like what occurs in human dreaming.