BC: The End
FC: By: Shuman Li Cruz Rendon Jacob Woodworth | Mammals
1: Orders: Monotremes Marsupials Placental mammals | Classification | Kingdom: Animalia Phulum: Chordata Subphylum: Vertebata Class: Mammals
2: Biomes | Rain Forest Biomes: Tropical Rain Forests Temperate Rain Forest Desert Biomes Grassland Biomes Deciduous Forest Biomes Boreal Forest Biomes | Mammals lives every where!
3: Characteristics By Order | Monotremes: Mammals that lay eggs. The only speicies of monotremes that are alive today are the spiny anteaters and duck-billed platypuses, they are all living in Australia and New Guinea. | Marsupials: Mammals whose young are born alive that develop in a pouch on their mother's body in early stage of development. Have a short gestation period: the length of time between fertilization and birth. When they are born, they are blind, hairless, and pink.
4: Characteristics By Order Continued | Placental Mammals: Develops inside its mother's body until its body systems can function independently. Humans are placental mammals. The larger the placental mammal is, the longer its gestation period is.
5: 1.Vertebrates 2.Four-chambered heart 3.skin covered with fur or hair. | Today there are about 6,000 different species of mammals! | Characteristics
6: Type of Symmetry: All mammals have bilateral symmetry. | Era Period: the first mammals became extinct 160 million years ago. They appeared in the Precambrian Time in the Paleozoic Era.
7: Behaviors By Order | Monotreme: Spiny Anteaters: ant eater Powerful Claws Duck-billed Platypuses: Webbed feet and a bill live in water | Marsupials: Kangaroos: Powerful hund leg for jumping long tails help them keep their balance herbivores, carries their baby with them in a poket. Opossums: omnivore, good climbers, "play dead".
8: Behaviors By Order Continued | Placental Mammals: Placenta passes food and oxygen from mother to babies. Wastes passes from the young to the mother by placenta.
9: When did They First Appear | Mammals appeared before dinosaurs and way before birds. They appeared two hundred and seventy million years ago. | They used to be small animals that looked like reptiles. they were in a shape of a mouse.
10: Fur and Hair | All mammals eventually have hair or fur in their lives. Like a bird's feathers, an animals fur helps them from losing body heat. The fur also helps them maintain a stable blood temperature. Each hair has dead cells that inclued the tough material that makes feathers strong. The hair grows from living cells on below the surface of the skin. The amount of hair on the body varies for the animal. Like a manatee is going to have less hair then a gorilla. The thickest fur coat is a sea otter's. It can have up to 150,000 hairs per
11: square centimeter. Human bodies are covered in hair. It is just very spaced out. Obviously animals that live in colder climates have more fur then animals in hot climates. Fur is an adaptation for animals. The layer of fat under the hair is to.
12: Teeth | Animals obviously need energy. Well mammals teeth has adapted to chewing their food. This makes it easier for the mammals to digest their food. There are four types of teeth. The first type is incisors. They are flat edged teeth to bite off parts of food. Then there are canines. These are used to stab into food. Then there are premolars and molars. These are used to grind and shred food. The hardness and sharpness of their teeth vary on what they eat. Like an herbivores teeth will be flat for grinding compared to a lion. A lions teeth would be sharp for killing prey
14: How Do they Obtain Oxygen | Mammals breathe with lungs that have a huge, moist surface area where oxygen can dissolve and move into the bloodstream. Mammals have a four-chamered heart and a two-loop circulation.One loop pumps oxygen-poor blood from heart to lungs then back to heart. second loop pumps oxygen-rich blood from heart to the tissues of mammal's body then back to heart.
15: Nervous System and Senses | Receive information about its environment and coordinate the animal's movement. | Brains of mammals enable them to learn, remember, and behave in complex ways. | Senses of mammals enable them to see in the dark, see objects in color,hear well, smell, track prey, detect predator...
16: Movement | Different mammals have different ways of movement. Some mammals have four limbs and they use all four to walk. There are other other mammals with four limbs like kangaroos that only use two limbs to walk or jump in the kangaroos case. They have specialized ways to move.
18: Predator/Prey Feeding Habits
19: Mammals are both predators and prey. Like you see on the picture on the left. The lion is a mammal and eating the zebra which is also a mammal. Every mammal has their own way of attacking and finding their prey. They also have their own way of fighting or hiding from a predator. Some of them "play dead".
20: Reproduction and Caring For Their Young
21: Mammals usually have internal fertilization. Some are a special case and lay eggs. Both feed them milk from the mom's mammary glands. Most young mammals are instable at birth. Some can't walk, open their eyes, and some don't have fur. Think of them as human babies. They usually stay with their parents for some time then go off on their own. They reproduce sexually.
23: Food Web
24: Equus Africanus | This mammal is a part of the horse family. It is a donkey. About 750 individuals of them exit in the wild. They usually lives in deserts. They can live without water for a long time and can get extra moisture from foods. Equus Africanus have very big ears that help them hear well and keep them cool. Except mother and babies, all the equus africanus live separately. They can contact each other by their loud voices which can be heard over 2miles. They defend them selves by kicking with their front and hind legs.
25: Extra Credit Page