THE FEELING OF WEIGHTLESSNESS IS ONE OF THE MOST ENGAGING SENSATIONS EXPERIENCES WHILE SCUBA DIVING.THE ABILITY TO SOAR OVER A TOWERING CORAL HEAD OR GLIDE IN SLOW MOTION, WE AS DIVERS REVEL IN OUR TEMPORARY REFUGE UNDERWATER. TO THE DOLPHIN THESE SENSATIONS ARE MUNDANE….VAULTING HIGH ABOVE THE WAVES, TUMBLING THROUGH THE AIR, FALLING BACK INTO THE SEA, RACING THROUGH THE DEPTHS WITH UNFETTERED GRACE ….
RISSO’S DOLPHINS INHABITS DEEP TROPICAL AND WARM TEMPERATE WATERS IN BOTH NORTHERN AND SOUTHERN HEMISPHERES.USUALLY SEEN IN GROUPS OF 3-50 THEY OFTEN MIX WITH OTHER DOLPHIN SPECIES.THEY OFTEN SURFACE LEISURELY SIDE BY SIDE IN A ‘CHORUS LINE’BUT WHEN MOVING QUICKLY ARE ACROBATS AND OFTEN BREACH, AND BOWRIDE THIS IS A MORE BARREL-SHAPED DOLPHIN WITH A LARGE BLUNT HEAD AND NO BEAK.VARIED IN COLOUR FROM BLUE-GREY,GREY-BROWN OR ALMOST WHITE DEPENDING ON AGE.
SCARING FROM OTHER MALE RISSO’S DOLPHINS CAN OFTEN BE SEEN.THEY CAN WEIGH AS MUCH AS 500KG AND MEASURE BETWEEN 2.8-3.8 METRES IN LENGTH.
FOUND IN ALL COLD TEMPERATURES AND TROPICAL SEAS WORLDWIDE. AND ARE BOTH COASTAL AND OCEANIC SPECIES.THE HABITATS THEY OCCUPY IS DIVERSE, RANGING FROM ROCKY REEFS TO CALM LAGOONS AND OPEN WATER .BOTTLENOSE DOLPHINS HAVE BEEN REPORTED INDIVIDUALLY, IN GROUPS OF BETWEEN 10 – 100 INSHORE AND UNITS OF SEVERAL HUNDRED OFFSHORE.THEY ARE POWERFUL SWIMMERS AND ACROBATS IN NATURE,OFTEN BOWRIDING AND LEAPING ALONGSIDE VESSELS.THE WELL-KNOWN BOTTLE-SHAPED BEAK IS SHORT AND SLENDER.IT BROADENS AS THE BODY SIZE INCREASES.IN SOME POPULATIONS THE MELON(THE BULGING FOREHAED WHICH IS BELIEVED TO FOCUS SOUNDS FOR ECHOLOCATION) IS MORE ROUNDED. WEIGHING IN BETWEEN 90 – 650 KG AND MEASURES BETWEEN 1.9M AND 4M.
THE SPECIES NAME REFERRING TO THIS SPECIES’LONG SNOUT.THERE ARE NO SUBSPECIES,BUT THERE ARE FOUR DISTINCT EASTERN PACIFIC FORMS; THE EASTERN.THE WHITEBELLY.THE COSTA RICAN AND THE HAWAIIAN.THIS IS A SLENDER CREATURE WITH A LONG,THIN BEAK TO WHICH THE DISTICT FOREHEAD SLOPES GENTLY.ALL FORMS MEASURE BETWEEN 1.3M AND 2.1M IN LENGTH AND WEIGH BEWTEEN 45-75KG.
UNITS RANGE FROM A FEW ANIMALS TO A FEW THOUSAND OFTEN MIXING WITH OTHER CETACEAN SPECIES.THEY ARE DRAMATICALLY ACROBATIC, WITH SOMERSAULTS, HIGH SPINNING LEAPS.THEY VOCALISE WITH WHISTLES AND CLICKS AND CAN TRAVEL AS FAST AS 20KPH. THEY ARE SUCH FUN TO WATCH !
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