Blue Planet II 'Coasts'

If you've ever been to the seaside, you might have seen some coastal wildlife. How much do you know about this changeable environment?

Check out all the latest animal and nature quizzes, clips and more from across the BBC on these pages!

- CBBC Attenborough and Animal Quizzes

- Earth Day activities

- CBBC Animals on BBC iPlayer

- CBBC's Animals hub