Why are dolphins so popular among humans? Most of us would agree that we like to watch dolphins play. In fact, dolphins are believed to behave in a very friendly manner towards humans and not show any fear, which is quite uncharacteristic of any wild animal. One of the reasons for the dolphin’s popularity could be their friendly faces. However, one feature which has undoubtedly made dolphins so popular is their intelligence, which is unparalleled in the animal kingdom.