What's your favorite animal? In My Favorite Animal: Seals, students will learn amazing facts about seals. Each My Favorite Animal book features interesting non-fiction at a 2nd-grade reading level paired with questions throughout the text to check the reader's comprehension. Sample Text: Seals are carnivores. They hunt fish but they will also eat squid, octopus, and crustaceans like shrimp and lobster. Leopard seals will eat penguins and sometimes sea birds. Leopard seals will also eat smaller seals.