Prologue: An Introduction to Australia's Mammals
* Discusses the diversity and unique characteristics of Australian mammals, including their ancient origins, isolation, and adaptation to various habitats.
* Example: The platypus, a monotrematous egg-laying mammal, represents Australia's ancient mammalian lineage.
Chapter 1: Monotremes
* Covers the three species of monotremes: platypus and echidnas.
* Describes their distinctive features, including their egg-laying behavior, lack of mammary glands, and specialized sensory adaptations.
* Example: The short-beaked echidna (Tachyglossus aculeatus) is a spiny anteater that uses its long, sticky tongue to capture insects.
Chapter 2: Marsupials
* Introduces the largest group of Australian mammals, with over 150 species.
* Discusses their defining characteristic: the presence of a pouch (marsupium) for carrying and nurturing developing young.
* Example: The red kangaroo (Macropus rufus) is the largest marsupial, known for its powerful hops and ability to cover vast distances.
Chapter 3: Placental Mammals
* Covers the smaller group of placental mammals that have evolved in Australia, including bats, rodents, and seals.
* Describes their differences from marsupials, including their extended gestation period and nourishment of the developing young via a placenta.
* Example: The greater horseshoe bat (Rhinolophus megaphyllus) is a nocturnal insect-eater that uses echolocation to navigate and locate prey.
Chapter 4: Insectivores and Herbivores
* Focuses on mammals that primarily feed on insects (insectivores) or plants (herbivores).
* Discusses their adaptations for their specific diets, such as specialized teeth and digestive systems.
* Example: The sugar glider (Petaurus breviceps) is a small, gliding marsupial that feeds on insects and sweet tree sap.
Chapter 5: Carnivores
* Covers the mammalian predators of Australia, including marsupial carnivores and placental carnivores.
* Describes their adaptations for hunting, including sharp teeth, powerful claws, and acute senses.
* Example: The Tasmanian devil (Sarcophilus harrisii) is a nocturnal marsupial that is an aggressive and indiscriminate scavenger.
Chapter 6: Marine Mammals
* Introduces the mammals that inhabit the waters surrounding Australia, including whales, dolphins, and seals.
* Discusses their adaptations to their aquatic environment, such as streamlined bodies, powerful tails, and blowholes for breathing.
* Example: The humpback whale (Megaptera novaeangliae) is a migratory whale known for its spectacular acrobatic displays.
Chapter 7: Threatened and Extinct Mammals
* Examines the many Australian mammals that are threatened or have become extinct due to habitat loss, introduced species, and hunting.
* Discusses conservation efforts and strategies to protect these vulnerable species.
* Example: The eastern quoll (Dasyurus viverrinus) is a critically endangered marsupial that faces threats from habitat fragmentation and predation by feral cats.
Epilogue: The Future of Australia's Mammals
* Highlights the importance of conservation and research in ensuring the survival of Australia's unique and diverse mammalian fauna.
* Discusses the challenges facing mammal populations, such as climate change and invasive species, and emphasizes the need for ongoing monitoring and protection efforts.
