Dolphins use sound to identify objects around them, navigate underwater, hunt prey and communicate with each other. Through their well-developed sensory ability, they use echolocation by producing various sounds that reflect and echo back from objects.Know More
Echolocation is a distinctive ability of dolphins, other marine mammals and bats to project high-frequency sound waves and listen for echoes when the sound waves bounce from objects. Dolphins echolocate by creating clicking sounds and using echoes to find out what objects surround them. They can determine the size, form, pace and direction of things with precision. Dolphins produce varying types of sounds, such as clicking, squeaking, creaking and buzzing. They produce sounds in different volumes, wavelengths, patterns and frequencies.
The fast conduction of sound in the water makes echolocation highly effective. Dolphins use the nasal sacs in their heads to produce a rapid series of clicks, which go through their protruding forehead. Dolphins interpret the reflected sound wave as they receive the information through their fat-filled cavities in the lower jaw. Their auditory nerves deliver the information to the middle ear and brain, resulting in an acoustic image.
Dolphins also generate sounds to communicate above the water as they jump or hit the water surface with their flippers and flukes. Scientists believe that dolphins use sounds to recognize each other and communicate tactical signals while hunting food as a group.Learn More
Baby dolphins, or calves, are approximately 3.8 feet long and weigh around 40 pounds. Baby dolphins gestate for a period between 9 and 17 months, depending on the species. Calves are born live in shallow water and quickly taken to the surface for their first breath.Full Answer >
Dolphins are warm-blooded, not cold-blooded. This is because dolphins are classified as marine mammals, rather than fish. Dolphins maintain consistent body temperature just like other warm-blooded animals.Full Answer >
Bottlenose dolphins are well-known stars of aquarium shows. Although they're typically shallow divers, they can dive down to 850 feet or so below the ocean's surface and they can also stay underwater for up to 15 minutes. They are social beings who cooperate when nursing their calves and hunting for food.Full Answer >
The bottlenose dolphin's diet consists primarily of fish and marine invertebrates. Other dolphins eat a variety of foods depending on their species, available food and the methods they have learned for hunting.Full Answer >