Sea Creatures: Dolphin Trivia Quiz — Enjoyable Three-Choice Questions on Fun Facts

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Started performing in bands in junior high school. Influenced by Japanese rock and UK rock, spent over 10 years continuing band activities while creating original songs. Later began producing Vocaloid tracks using Hatsune Miku, with total plays of released songs surpassing 10,000. Has five years of experience writing for music magazines. Currently works as a music writer, director, and composer, keeping a ground-level perspective on the scene by attending live shows across Japan. Now performs at live houses in Tokyo, showcasing guitar playing centered on acoustic guitar and informed by knowledge of chord analysis and guitar scales. Also writes leveraging a broad knowledge of music genres.

Dolphins are highly popular, with dolphin shows held at aquariums.

Their cute behavior—learning various tricks and getting friendly with people—can be truly soothing.

Some of you may be thinking, “I want to learn more about dolphins” or “I want to know what kind of animals they are.”

In this article, we’ve put together a quiz featuring fun trivia about dolphins.

We’ll ask questions that let you enjoy bits of knowledge, such as the characteristics of dolphins’ bodies and the reasons behind their surprising behaviors.

Try answering this quiz to learn more about dolphins, beloved by people of all ages, from children to adults.

[Sea Creatures] Dolphin Trivia Quiz: Three-Choice Questions to Enjoy Fun Facts (11–20)

What’s the difference between dolphins and whales?

Habitat
body size
Dietary habit

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body size

The difference between dolphins and whales lies mainly in body size. Individuals over 4 meters are sometimes called whales, and those below that are called dolphins, but there is no clearly defined standard.

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What are the characteristics of dolphin skin?

It’s rough-textured and performs well on rocky terrain.
Smooth and elastic
Used to catch small creatures with something sticky

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Smooth and elastic

A dolphin’s skin is extremely smooth and elastic. Thanks to these characteristics, it can reduce water resistance and swim efficiently, enabling quick movements and high-speed pursuits. This smoothness and elasticity play an important role when dolphins chase prey or escape from predators.

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What is the dolphin’s sleeping method that humans don’t have?

Put the entire brain into deep sleep
Remain completely motionless while floating on the water's surface
putting the left and right hemispheres of the brain to sleep alternately

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putting the left and right hemispheres of the brain to sleep alternately

Dolphins rest their left and right brain hemispheres alternately, allowing one hemisphere to remain active while the other rests. This enables them to maintain a certain level of consciousness and continue breathing. In this state, they often keep one eye closed and the other open, making it possible to subconsciously monitor their surroundings even while sleeping.

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What do dolphins mainly eat?

plant
meat
plankton

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meat

Dolphins are carnivores that primarily eat meat such as fish and squid. They are very active animals with strong hunting abilities, using their sharp teeth to catch prey. In aquariums, you can picture them eating things like mackerel and sardines.

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What is the communication performed by dolphins called?

echolocation
biosonar
Sound navigation

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echolocation

The method of communication used by dolphins is called “echolocation.” Dolphins emit sound waves and listen to the echoes to determine the position, shape, and movement of objects. Because it functions like a natural sonar, it plays a crucial role in their underwater lives.

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