Child Hierarchical Categories

Amphibians Classification Amphibians Families Amphibians Species Animal Anatomy Animal Behavior Animal Classification Animal Conservation Animal Diet Animal Distribution Animal Ecology Animal Evolution Animal Families Animal Habitats Animal Kingdom Animal Lifespan Animal Physiology Animal Reproduction Animal Species Animal Taxonomy Aquatic Animals Marine Amphibians Marine Animals Marine Mollusks Mollusks Classification Mollusks Families Mollusks Species Terrestrial Amphibians Terrestrial Animals Terrestrial Mollusks Zoology

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