DK 
DK Super Readers Level 1 Diving Dolphin 

Use your reading superpowers to learn all about dolphins as they grow up together to hunt and play in the ocean – a high-quality, fun, non-fiction reader – carefully levelled to help children progress.
Diving Dolphin is a beautifully designed reader all about this favourite sea creature, growing up with its family in the ocean.
The engaging text has been carefully levelled using Lexiles so that children are set up to succeed.
A motivating introduction to using essential non-fiction reading skills.
Children will love to find out about this favourite ocean animal“s life.