Vertebrates 4 Flashcards
What are some unique features of mammalian reproductive anatomy, and how does extended parental care benefit mammalian offspring?
Mammals have internal fertilization, placental development, and extended parental care, which allows for learning from parents and enhances offspring survival.
How are placental mammals different from monotremes and marsupials in terms of embryonic development?
Placental mammals retain embryos in the uterus for full development, nourishing them through a placenta, whereas monotremes lay eggs and marsupials give birth to very immature young.
What percentage of mammal species do rodents represent, and what are some common characteristics of rodents?
Rodents represent almost 40% of all mammal species and are characterized by continuously growing incisors and other adaptations for gnawing.
How do bats differ from other mammals, and what are some of their ecological roles?
Bats are the only mammals capable of sustained flight and play vital roles as pollinators, seed dispersers, and insect predators.
Describe the feeding habits of bats and provide examples of their dietary preferences.
Bats feed on fruits, insects, nectar, and blood, with different species specializing in various diets such as insectivory, frugivory, and hematophagy.
What is echolocation, and how do bats use it for navigation and hunting?
Echolocation is the use of sound waves to navigate and locate prey. Bats emit high-frequency sounds and listen for echoes to detect objects and prey in their environment.
