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

To make it easier to swim

Dolphins gather around ships because the waves and currents created by the vessel make it easier for them to swim. They use the wave generated at the bow as a form of “surfing,” allowing them to move efficiently, which is why they behave this way. People often perceive this as play, but in reality, it’s a clever strategy that helps them travel more easily.

bubble ring

The rings of water that dolphins blow from their mouths are called “bubble rings.” Dolphins use their tongues to create rings of air, and the way those rings float stably underwater is truly mysterious. You can often see them during dolphin show performances.

bait

Dolphins obtain moisture from their food and use the water contained in what they eat to maintain their internal fluid balance. Because they do not drink seawater or tap water as is, they tend to prefer foods with a high water content.

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.

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.

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.

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.