A pet theme will be enjoyable for children, especially those who have pets at home or who are about to get their first pet. There a number of books you could read about pets, such as "Wanted: The Perfect Pet" by Fiona Robertson, "What Pet to Get" by Emma Dodd or "Please Don't Tease Tootsie" by Margaret Chamberlain. You could then discuss aspects of pet care and welfare, and make sure the kids know they're a big responsibility.
Nighttime animals are all around us, but we rarely see them as they come out when we're tucked up in bed. Some books to teach children about nocturnal animals, and to entertain them, include "Bats at the Beach" and "Bats at the Library" by Brian Lies, "Quiet Night" by Marilyn Singer or "My Night Forest" by Roy Owens. After reading, discuss different animals that come out at night and the reasons why they are nocturnal.
Some magnificent animals live wild and free in parts of the USA. Read stories about these animals at storytime to encourage children to appreciate their native wildlife. You could read "Bear Snores On" by Karma Wilson, "Moose on the Loose" by Kathy-Jo Wargin or "My Little Polar Bear" by Claudia Rueda. After the story, discuss other native animals, and the areas where these animals live. Think about how climate change is affecting wildlife, especially in Northern areas, such as Alaska.
Many exotic and amazing creatures live in jungles in faraway countries. Some books you could read about this theme include "Henry Explores the Jungle" by Mark Taylor, "Monkey in the Jungle" by Edna Preston and "Guess Who's in the Jungle" by Naomi Russell. Later, Discuss some of the multitude of creatures that live in jungles and exotic forests. Briefly, explain deforestation,and its negative implications for the animals of the jungle.