that the adult platypi do not have teeth but they have heavily keratinized pads instead, while most mammals have teeth. In all mammals, the tiny bones that conduct sound in the ear are incorporated to the skull, rather than in the jaw as in the cynodonts. However, the external opening of the ear is still in the base of the jaw. The platypus has extra bones in the shoulder, one of them is called the interclavicle, which is a bone not found in any other mammal. Also, its legs are in the side of its
Classification Of Mammals What are Mammals? Mammals are vertebrates (backboned flora and fauna) that feed their young on mother's exploit. There are approximately 4,260 species of mammals. When we think of an creature it is likely to be a mammal. People are mammals. Cats and dogs are mammals. So are such ranch animals as cattle, goats, hogs, and horses. Mammals also include such captivating animals as porcupines, gorillas, giraffes, rhinoceroses and kangaroos. Mammals are found to be present all
Introduction The Permian-Triassic extinction event is undoubtedly the largest extinction event the Earth has ever seen. While evidence shows that it occurred over a great amount of time, it was effective in causing the extinction of an incredibly large portion of life on Earth. To such an extent that it took millions of years before any large amounts of biodiversity occurred again. This is why it is also referred to as the ‘Great Dying’. This paper will will analyze the survivability of terrestrial