Among the adaptations of dolphins are hydrodynamic bodies, blowholes on top of their heads, flippers and flukes and echolocation. Some scientists believe that dolphins are able to enjoy the benefits of sleep even while they're in the water by having one half of their brains alert and the other shut down.Know More
As with other whales, the ancestors of dolphins were terrestrial animals that returned to the sea for good. They are entirely pelagic, but they are still mammals. This means they are warm-blooded, need to breathe air and nurse their young with milk from mammary organs.
To help the animals move through the water, their bodies became streamlined. Their forelimbs evolved into flippers and their tails evolved into flukes. They lost their hind limbs.
The unique shape of a dolphin's pupils allow it to see well in both air and water.
The dolphin's nostrils moved up to the top of its head and became blowholes. This allows it to breathe without raising its head out of the water.
Dolphin babies are born flukes first and need help to the surface for their first breath. They don't have lips to suckle milk from their mothers, so the milk is injected into their mouths.Learn more about Marine Life
Dolphins do not mate for life. A pair of dolphins typically engages in mating for a few days, but then the male goes on to mate with other females.Full Answer >
A dolphin's slimmer body, beak-like nose and curved fins distinguish it from the porpoise's stout build, rounded face and triangular fins, according to the National Ocean Service. Although they are different species, dolphins and porpoises both belong to order Cetacea. Approximately 32 dolphin species have been discovered, while only six known porpoise species exist.Full Answer >
The 42 known species of dolphins live in the waters of oceans and rivers all over the world. Dolphins are found everywhere, from shallow coastal waters to the deep of the open ocean, and they migrate to and from certain areas due to water temperature and food availability.Full Answer >
Some dolphins can jump as high as 25 feet above the water's surface. Juvenile spotted dolphins have been observed jumping 15 feet. Spinner dolphins get their name from the fact that they spin while jumping. Spinner dolphins can complete seven revolutions in the air before hitting the water.Full Answer >