'Pouched mammals' presentation slideshows

Mammals

Mammals. How do Mammals adapt to their environment?. Characteristics:. Characteristics:. Endothermic. Characteristics:. Endothermic All have hair or fur. Characteristics:. Endothermic All have hair or fur Feed their young milk. Characteristics:. Endothermic All have hair or fur

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IB-202-7 5-29-06

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Classification

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Classification

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Introduction to Mammals

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EVIDENCE FOR EVOLUTION

EVIDENCE FOR EVOLUTION. Fossils. GEOGRAPHIC DISTRIBUTION. Example: Many pouched mammals (marsupials) in Australia Few placental mammals ( deer, squirrels). SIMILARITIES IN STRUCTURE. Homologous structures. VESTIGIAL STRUCTURES. SIMILARITIES IN DEVELOPMENT. Similar development

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Phylogeny of Mammals

Phylogeny of Mammals . Meghan Maraia. Mammals Vs. Synapsids . Specialized Teeth Diverse morphologies of jaws/ear bones Limbs positioned under body Enlarged brain 2-3-3-3-3 digit bones. Homogenous teeth Limbs out to side 2-3-4-5-3 digit bones. Basic Cladogram. Monotremata

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Lecture 6 ANIMAL EVOLUTION: THE VERTEBRATES

Lecture 6 ANIMAL EVOLUTION: THE VERTEBRATES. Three Lineages of Mammals. (monotremes) egg-laying mammals (marsupials) the pouched mammals (eutherians) placental mammals. Monotremes : . The only egg-laying mammals

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