Ultrasound - Dolphin Communication

The video explores how marine species, particularly dolphins, use sound for communication. Sound travels faster in water, allowing dolphins to use unique whistles for identification, similar to human names. Dolphins produce sounds, some of which are ultrasonic and beyond human hearing. The video also discusses the differences in hearing ranges between humans and dolphins.

How do dolphins primarily communicate with each other?

• Using squeaks, whistles, and clicks

• By changing colors

• Through body language

• Through written symbols

What is a signature whistle in dolphins?

• A unique sound that identifies a dolphin

• A sound used to find food

• A sound that indicates danger

• A sound used to scare predators

Why can't humans hear some of the sounds dolphins make?

• Because they are too low-pitched

• Because they are too high-pitched

• Because they are too quiet

• Because they are too fast

What is the term for sounds that are too high-pitched for humans to hear?

• Infrasound

• Hypersound

• Supersound

• Ultrasound

How does the hearing range of dolphins compare to that of humans?

• Dolphins can hear lower frequencies than humans

• Dolphins can hear higher frequencies than humans

• Dolphins have the same hearing range as humans

• Dolphins cannot hear as well as humans