Dolphins hear when the sounds in the water bounce off the dolphin's jaw bone into the middle ear. Dolphins can hear far better than humans and their hearing is even better than that of dogs. More »

Generally, the lowest frequency of sound the human ear can hear is 20 Hz. Sounds below this frequency are referred to as infrasound. Some people, however, have extra sensitivity and are capable of detecting sounds as low... More »

Whales perceive sounds in a much higher frequency than humans are able to hear, often around 120 kilohertz. Whales hear sounds as vibrations in the water around them. More »

Dolphins are equipped with blowholes on the crowns of their heads through which they breathe air when they reach the surface of the water. They are capable of holding their breath for up to 10 minutes. More »

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Whales and dolphins beach themselves, or end up beached, for reasons ranging from injury and illness to polluted water and simply becoming stranded at low tide. When these creatures travel in pods, the entire pod is like... More »

A male dolphin is known as a "bull," a female dolphin is known as a "cow," and a baby is known as a "calf." Though male and female dolphins do appear strikingly similar, males are noticeably larger. More »

Dolphins are mammals found in the sea and are part of the toothed whale family. They are grey with backs that are darker than the rest of their bodies. More »