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Mammals 4

Page history last edited by Stephan Arthur Joanides 13 years ago

 


 

by Ari, Eunice, and Griffin

 

Mammals are Vertebrates and they have three main groups: 

 

Vertebrates are:

"An animal of a large group distinguished by the possession of a backbone or  spinal column, including mammals, birds, reptiles, amphibians, and fishes."

 

Picture of Vertebrates:

Can you tell which one is the Mammal?

 

What are mammals anyway?

 

Mammalsany vertebrate of the class Mammalia, having the body more or less covered in hair, nourishing the young with milk from the mammary glands, and, with the exception of egg-laying monotremes, giving birth to live young.

 

 

There are 3 types of mammals.

1. Monotremes

2. Marsupials

3. Placental Mammals

 

Notes and Type by Eunice and Ari

 

Monotremes have many  reptilian traits. They are the mammal that lay eggs, rather than live young, these eggs are soft and leathery. Even after emerging from the egg, a junior monotreme will still drink milk from the mother. Monotremes have a cloaca, which is a cavity at the end of the digestive tract for the release of both excretory and genital products.

 

 

 

Diagrams of Monotremes

Perhaps the most famous of all monotremes, presenting: Perry the Platypus!!!!!!!!!!

Here is a video of Perry the Platypus, an amazing mammal. http://www.youtube.com/watch?v=ONgjXrOShlc

Here is an awesome platypus video. http://www.youtube.com/watch?v=OVneqhu9oZk

Here is a link to the actual sound of a platapus: http://www.youtube.com/watch?v=dsd7ZfdZcNU&feature=related

 

Typed by Ari, notes by Eunice and Griffin

Marsupials are mammals with pouches. Most marsupials naturally live in Australia. and baby marsupials are born, they are very, very small, and are usually called joeys. A joey is a young kangaroo, wallaby, or possum and they can be as small as a grain of rice!!  When joeys are born, the joey will climb up the mom into her pouch. In the Mom’s pouch are the mammary glands, which produce milk. The baby marsupial feed off of the milk and continue to grow and develop in the pouch until he is ready to face the world. They grow up so fast!

 

 

File:Kangaroo and joey03.jpg

A marsupial-kangaroo!     A diagram of an opposum.         A baby kangaroo in it's mothers pouch.

 

This is a kangaroo: http://www.youtube.com/watch?v=4DZnx1mGyq4

This is a funny wallaby: http://www.youtube.com/watch?v=VraDcC8yWD0&feature=related

Here is a link to a video of a joey coming out of the pouch, then going back in: http://www.youtube.com/watch?v=2qBgMmRMpOo Note to watchers, nothing happens in the first 25 seconds!

 

Notes by Eunice Type by Ari

 

In Placental mammals  its development in the mother’s uterus. In the uterus, there is an organ called the placenta which provides the infant with nutrients and oxygen then removes the wastes through the embryo. The embryo lives in a fluid contained by a protective membrane called the amnion. Placental mammals are the most common type of mammals, and they are the best!

  • look in a mirror

         or 

  • Turn around 

 

Examples of Placental Mammals:

 

 

Andy Samberg         Diagram of a Kitty, a placental mammal     A dog in a mailbox, a mammal!

An example of a placental mammal: http://www.youtube.com/watch?v=_Z5-P9v3F8w

 

Edited by Ari, Notes by Griffin and Eunice typed by Griffin

     Even though they live in the sea, marine mammals are placental mammals. The embryo completes its development in the uterus, and they are nourished with mother's milk. There is a diverse group of 120 species of marine mammals living underwater. All of the marine mammals depend on the ocean for nutrients, yet breath oxygen by surfacing. Although many marine mammals can hold their breath for more that 20 minutes, this fact doesn't enable them to breath under water. A few examples of marine mammals are otters, dolphins, whales, and porpoises. Many marine mammal are endangered and some are at risk of being extinct due to the luxury of their blubber, meat, and sometimes even their fur.  

File:Bottlenose Dolphin KSC04pd0178.jpg

A bottlenose dolphin, a water mammal. This dolphin is pictured in it's natural habitat.

 

 

A diagram of a marine mammal.

A video of a dolphin playing with bubbles: http://www.youtube.com/watch?v=TMCf7SNUb-Q

This is one of the famous water mammals, Shamu, at Seaworld in California. This is one of the great whales performances: http://www.youtube.com/watch?v=HAfTHFiiNF8

 

Mammal Quiz: 

  1. What makes a monotreme mammal differ from all other mammals?
  2. What differs a placental mammal from a marsupial?
  3. What is a marsupial mammal most distinctive quality? Where do most Marsupials live?
  4. Are all mammals vertebrates?
  5. What gives placental mammals the name "placental"? 
  6. Is a cat a marsupial, monotreme, or a placenta mammal? How do you know, what trait tells you?
  7. Are dolphins and platypuses the same type of mammal.
  8. How big is a baby kangaroo at birth, and how does it get into the mothers pouch?

 

 

 

Sources:

www.dictionary.reference.com

http://www.google.com/imgres?imgurl=http://www.animalbio.net/diversity/preview/img/vertebrates.jpg&imgrefurl=http://www.animalbio.net/diversity/preview/index.htm&usg=__jmxQFd4asMeVqA0h8p3E3SK1Tlo=&h=660&

dictionary on dock of Mac computer in computer lab

http://www.enchantedlearning.com/subjects/mammals/echidna/Echidnaprintout.shtmlhttp://en.wikipedia.org/wiki/File:Andy_Samberg_by_David_Shankbone.jpg

http://www.google.com/imgres?imgurl=http://www.dragoart.com/tuts/pics/8/2149/how-to-draw-perry-the-platypus-from-phineas-and-ferb.jpg&imgrefurl=http://www.dragoart.com/tuts/2149/1/1/how-to-draw-perry-the-platypus-from-phineas-and-ferb.htm&h=537&w=900&sz=46&tbnid=XpCSKgnZfBW4dM:&tbnh=87&tbnw=146&prev=/images%3Fq%3Dperry%2Bthe%2Bplatypus&zoom=1&q=perry+the+platypus&usg=__IEBBRqny_KSwPrQKwIUwodWEfrw=&sa=X&ei=4st3TaDFNoG6sQO4homyBA&ved=0CBsQ9QEwAg

www.dictionary.reference.com

www.youtube.com

http://www.funnydogsite.com/pictures/You_Got_Mail.htm 

http://en.wikipedia.org/wiki/Dolphin

http://www.google.com/imgres?imgurl=http://mmi.oregonstate.edu/sites/default/files/porpoise-diagram.jpg&imgrefurl=http://mmi.oregonstate.edu/ommsn/outreach/dos-donts&h=238&w=380&sz=59&tbnid=GLu7kc4EP0lTZM:&tbnh=77&tbnw=123&prev=/images%3Fq%3Dwater%2Bmammals%2Bdiagram&zoom=1&q=water+mammals+diagram&usg=__h-UNd-GO5Ja_DTaC_VYkPd8lClc=&sa=X&ei=OGt6TdTWJJP6rAHdy7XvBQ&ved=0CB8Q9QEwAw

font of title: www.familylobby.com

http://www.google.com/imgres?imgurl=http://michaelsnedic.com/images/mammals/Grey_Kangaroo_joey_web.jpg&imgrefurl=http://michaelsnedic.com/category/galleries/australian-mammals/&h=402&w=600&sz=69&tbnid=2GgA6TzW34862M:&tbnh=90&tbnw=135&prev=/images%3Fq%3Djoey%2Bkangaroo%2Bpictures&zoom=1&q=joey+kangaroo+pictures&hl=en&usg=__4aBrNiyJvwEadf2A2V-HDmrqmHU=&sa=X&ei=3Hh6TdebFM-OrQHP9cD9BQ&ved=0CCgQ9QEwBQ 

 

 

 

 

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