All about mammals


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All about mammals

  1. 1. Martha Plata
  2. 2.  Mammals are one of the 6 main classes of animals. Animal classes are groups of animals that scientists consider to be alike in some important ways. Mammals are the animal class that people belong to.
  3. 3.  There are only about 4,000 kinds of mammals. This sounds like a lot, but when you consider there are 21,000 kinds of fish and a whopping 800,000 kinds of insects you’ll realize mammals are a pretty small class!
  4. 4. Some ways mammals are alike Mammals are warm blooded The temperature could be  or boiling hot freezing cold…
  5. 5.  Mammals’ bodies are built to maintain just about the same temperature all the time. Warm blood lets the mammals be very active and live in a wide variety of places.
  6. 6. Mammals are everywhere Polar bears live in very cold areas. Camels live in hot areas. Moles live under the ground. Bats live in caves and fly in the air. Dolphins live in the oceans. Fur and fat help protect mammals who live in the cold. Mammals sweat or pant to release extra heat if they live somewhere toasty.
  7. 7. All mammals have fur or hair. Sometimes its long hair  Sometimes its very short covers their entire body hair or there are just a few strands.
  8. 8.  Even mammals that swim under the water (like dolphins and whales) have hair. Though you would need a magnifying glass to see the fine hair on the lips of a young whale. Mammals are the only animals with true hair. Hair are dead cords of a substance called keratin which is also what our fingernails are made from. The most important part is that hair is dead.
  9. 9.  What looks like hair on a fly or a spider actually contains living parts of the animal. That means if you cut a spiders hair it would HURT!
  10. 10. Mammal Babies: We all drinkMilk! Most mammal babies live inside their mothers before they are born, just like humans. How many things can you see in common between this human baby and this kitty baby?
  11. 11.  When the baby is big enough, it comes out of its mother’s body. Many people mistakenly think that being born alive is something all mammals have in common. There are, however, a few mammals (like the duckbilled platypus) who lay eggs like a bird!
  12. 12.  Well, even though some baby mammals are born different ways, they all drink milk that comes from their mothers bodies. Baby pigs, dolphins, bats and elephants all drink milk! Because the babies rely on their mothers milk to live, the mammal mommies have to care for their young.
  13. 13.  The length of time varies from a few weeks for mice to many years for humans! People have "baby teeth" or "milk teeth". So do all of the other mammals! The only exceptions are mammals like anteaters -- they dont have any teeth at all.
  14. 14.  Mammal mothers are hard workers. Baby mammals learn from their mothers. Most of the mothers don’t really try to teach their babies, but the babies watch their mother and do the things they see her do. Through copying their mothers, baby mammals learn everything they need to survive.
  15. 15. What do mammals eat when theygrow up? They eat all sorts of different things! Lions are mammals who eat meat – they are called carnivores. Cows are mammals who eat plants – they are called herbivores. People are mammals who eat meat and plants – they are called omnivores.
  16. 16. Mammals arent spineless Mammals are vertebrates, which means that they all have backbones (spines). Believe it or not, most animals dont have backbones -- mammals are one of the few groups that do. All mammals, except some sea cows and sloths have seven bones in their necks. This includes giraffes who have VERY long spines! Their necks can be 6 1/2 feet long, but theyre still made up of just seven bones.