Facts
What kind of animal is a dolphin — fish or mammal?
➜ Mammal (Млекопитающее)
What do dolphins use to swim fast?
➜ Their fins and tail (Плавники и хвост)
Are dolphins considered intelligent animals?
➜ Yes
Where can people see dolphins closely?
➜ In captivity — in dolphinariums or aquariums
“Classified” means …
➜ Arranged in groups
Where do dolphins usually live — in rivers or oceans?
➜ In oceans (В океанах)
What helps dolphins “see” with sound?
➜ Echolocation (Эхолокация)
What can dolphins recognize in a mirror?
➜ Themselves
What do we call people who study and protect dolphins?
➜ Marine biologists
“Gills” are used by fish to …
➜ Breathe underwater
What do dolphins eat?
➜ Fish and squid (Рыбу и кальмаров)
How do dolphins communicate?
➜ By clicks, whistles, and body movements
What do dolphins sometimes do for fun?
➜ Play-fight or surf waves
Why are dolphins in danger today?
➜ Pollution, fishing nets, and captivity
Steer” means …
➜ To control direction
How do dolphins breathe?
➜ Through a blowhole on top of their head (Через дыхало на голове)
What do dolphins have instead of gills?
➜ Lungs (Лёгкие)
What do scientists say about dolphin memory?
➜ They remember sounds for many years
What do dolphins sometimes do to help humans?
➜ Save swimmers
“In captivity” means …
➜ Kept by humans, not free
How long can dolphins hold their breath underwater?
➜ About 8–10 minutes (Около 8–10 минут)
Can dolphins sleep? How?
➜ Yes, one half of their brain sleeps at a time (Да, спит только одно полушарие мозга)
What makes dolphin training rewarding for people?
➜ They can learn and respond to signals
Why should we protect dolphins?
➜ They are intelligent and important for ocean life
“Rewarding” means …
➜ Giving satisfaction or pleasure