Kathleen N. Daly was born in London but spent her childhood on the island of Mauritius, in the Indian Ocean, and in France and Scotland. Ms. Daly has been a children's book editor in both England and America, and is the author of more than thirty books for children, many of them on plants and animals of the world. She now makes her home in New York City. (1977)
Overall a really good book to teach kids the basics of sharks and whales.
However, simply due to the age of the publication, there are a few factually incorrect things. I also noticed a misidentification and grammatical error.