1. What kind of animals are dolphins? 2. What do they have?
3. What are their weight?
4. Where do dolphins live?
5. Can penguins swim?
6. What do they have?
7. Why penguins don't freeze in cold water?
8. Are they fish?​

dolphins are mammals

they have got fins and a tail

they weight from seventy to five hundred kilos

Dolphins live in warm seas

they can swim very well

penguins have got thick feathers

thick feathers keep them warm

no. they are birds