The water was calm, which meant good visibility, and on the spur of the moment, dorsal fins protruded from the water a hundred meters (approx. 328 feet) from the boat. I looked at my daughters Chloe and Rosie (11 and 8 years of age) and it was a joy to see the expression in their faces. One thing is clear: nature still provides the most fascination in children, no matter how many iPads, Laptops, and social media our society cram into their daily lives; it also occurred to me how important it was for them to feel and experience this thrilling sensation.
Catching sight of a dorsal fin whilst sitting on a boat presents you with an instant sense of awe, and a sense of possibility and mystery. Also our biologists, who see this everyday, don't tire of it, as their excitement too was visible on their facial expressions. The dorsal fins disappeared under the water and were gone, we thought we had lost the dolphins, but we couldn't have been more wrong as they were just as curious about us and in the next instance the dolphins were bow riding under our boat, tilting their heads up to give us a good look from beneath the waves. We were all beguiled by their presence, intelligence and awareness.
We were told that dolphins see their world in different ways, their vision is limited as under the sea visibility is restricted. But instead they send out clicks from their jaws which creates a sound wave, and this sound wave bounces back to them to reveal a three dimensional picture in their brain. The sound waves disclose not only the exterior of the object they are observing but also the interior of the object - it's like an ultra sound - if they were looking at a human being they would see, through the sound waves, the kidneys, lungs, and our entire skeleton structure. Scientists have discovered this phenomena by hiding fish in concealed boxes, dolphins would know that the fish was inside through their ultra-sound capabilities.
Another fascinating fact is that the brain of the bottlenose dolphin is more complex and larger than a human brain. In addition, each dolphin has a signature whistle when they call out to each other, which means that there is an entire language which we have yet to understand and study. Needless to say, the science of cetaceans is spectacular and intriguing.