adaptation adaptation(biology) alligators anecdotes animalattacks animalbehavior animaldefenses animalhabitsandbehavior animals bears behavior bitesandstings cannibalism carnivora carnivorousplants congresses conservation control coyote crocodiles dangerousanimals dangerousaquaticanimals dangerousbirds dangerousreptiles ecology effectofhumanbeingson endangeredspecies environmentalconditions environmentaldegradation evolution food freshwaterfishes grasslandanimals grasslandecology greatplains grizzlybear herbivores highinterest-lowvocabularybooks history human-animalrelationships humanevolution juvenileliterature juvenilenonfiction keystonespecies leopard mammals marineanimals marineecology nat046000nat044000nat003000 naturalhistory nature northamerica phantomcats piranhas poisonousanimals predaciousfungi predation(biology) predatorhunting predatoryaquaticanimals predatorybehavior predatoryinsects primates psychologicalaspects puma ql758 rhinoceroses stonefishes teeth toppredators wildlifeconservation wildlifemanagement wolves