Books like Dolphins and Sharks
Mary Pope Osborne, Natalie Pope Boyce, Will Osborne
Dolphins and Sharks is 123 pages, about 2 hours 15 minutes at 250 words a minute.
9 books to read next
How long each takes
Dolphins 52 min 
A Ring of Endless Light 6.1 h 
Dolphin Adventure 1.2 h 
Shark Lady 42 min 
Shark 1.3 h 
Sharks 35 min 
Sharks 35 min 
Surprising Sharks (Boston Globe-Horn Book Honors (Awards)) 35 min 
The Great White Man-Eating Shark 35 min Bar height shows length. Estimated at 250 words a minute.