Ответ:
- Adult polar bears are taller than people.
- Polar bears live in cold places in the northern hemisphere.
- Polar bears have white fur, so they are difficult to see in the snow.
- Very hungry polar bears may attack people.
- Penguins cannot fly.
- Penguins eat fish, krill and small animals.
- Flying predators cannot see penguins against the dark snow.
- Penguins in many places are becoming less common.
