Animals -- Habitations -- Juvenile literature. Animals -- Habitations. Animals -- Habits and behavior 1 Animals -- Wintering -- Juvenile literature. Animals -- Habits and behavior. Winter 1 Autumn -- Juvenile literature 1 Birds -- Eggs -- Juvenile literature. Birds -- Development -- Juvenile literature. Birds -- Infancy -- Juvenile literature 1 Digestive system 1 Earth 1 Errors, Scientific. Medicine -- History. Medicine 1 Explorers 1 Felidae -- Juvenile literature. Cat family (Mammals) 1 Female health 1 Geography 1 Geology 1 Heart and circulation 1 INDIA-- REGIONAL GEOGRAPHY 1 Joints, muscles, and skin 1 Mental health and the nervous system 1 Mythology 1 Nocturnal animals -- Juvenile literature. Nocturnal animals. Animals -- Behavior 1 Outdoor recreation -- United States -- Juvenile literature. Outdoor recreation -- Canada -- Juvenile literature. Wilderness areas -- Recreational use 1 Rare animals -- Juvenile literature. Wildlife conservation 1 Respiratory system 1 Science -- Miscellanea -- Juvenile literature 1 Urinary and male health 1 Working animals -- Juvenile literature 1