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Chloe Fromm

on 3 June 2013

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By: Kohl Horsch, Wesley Rushton, Chloe Fromm, Alix Tyler, Charadyn Merkouris and Colin Larson Cetacea, Sireania, Chiroptera,
Placental Characteristics and
Respiration and Circulation of endotherms Cetacea Sireania Chiroptera Respiratory/Circulation system of endotherms Placental Characteristics Summary Questions or Comments? Animals included Where are they found:
*Most common off the coast of Florida
*Tropical Seas
*Warm Coastal Waters 2. endothermic. the majority of the heat energy is used to maintain their high body temperature. Double-loop circulation
Totally divided ventricle (4 chambered heart)
Diaphragm used for respiration Cetacea
Placental Characteristics
Respiratory/Circulation System Use the notes you have taken to complete the worksheet Unique Traits:
*Front limbs are flippers
*Flattened tail for swimming
*Placental Mammals
*Aquatic herbivores
*Large, slow moving, barrel shaped body, 3-4m long(~10-13ft.)
*Lack hind legs Animals included:
*Dugongs Fun Facts:
*Inspired mermaid legends
*Related closer to elephants than whales
*Sometimes know as "Sea Cow"
*The manatee is the only Sireania found in North America
*50 million year old fossils have been found 1. possess hair which is made of keratin.
( the evolution of mammals keratin is believed to be independent of reptilian keratin.) hair provides insulation. 3. 4 chambered heart. (totally divided ventricle) 4. Mammary glands are used to produce milk to nourish their young. female glands are the only functional glands. 5. Mammals have a diaphragm which is a sheet of muscle that separates the thoracic cavity from the abdominal cavity. 6. 7 cervical vertebrae(neck backbone) are presented in most mammals. 7. Most are ovoviviparous though some are oviparous. 8. teeth are imbedded in the jaw bone and come in a variety of forms. 9. well developed brain. Sources:
Biology(Text Book)
Modern Biology (Text Book)
Biology; The Web of life (Text Book)
http://www.defender.org 10. go through gestation period.A gestation period is a fetal development period from the time of conception until birth(for humans, the full gestation period is normally 9 months). 11.About 70% are placental mammals 12. embryos developed inside the mom's body, but the amniotic membrane which surrounds the egg, separates the embryo from it's mom. Whales
Dolphins FUN FACTS Where they are found They live in the ocean Compared to other animals dolphins are very smart they also live in groups
called Pods a long time ago dolphins were land animals a blue whales tongue can weigh as much as an elephant Females are called "Cows" Males are called "Bulls" echolocation (Write down both of these) A baby is called a "Calf" (write down one) dolphins ans whales investigate there surroundings by using echolocation, witch makes "pictures" of sound in there brain Unique characteristics +BATS+ Blowholes Bats are the only mammals capable of true flight. A bats wing represents a human hand. Some Whales have Baleen 70% of bats eat insects but there are other types of eating habbits such as vampire bats, fruit bats, and nector bats. while some bat populations number in millions others plummet and are almost extinct. bats can be found pretty much anywhere accept polar or extreme heated places Dolphins have teeth some bats have a high sense of hearing... they emit sounds that bounce off their surroundings which comes back to them and they can determine the size , distance, and how fast the object is moving. (write down 2) to survive the winter they go into a stage of basically hypothermia
which can last from a few minutes to a few hours. (write down 3) Additional information Dolphins navigate by following the hills and mountains of the ocean floor. gestation lasts for at least 40 days depending on the size of the litter which is usually one pup, the pup is about 25% of its mothers weight which would be like a human mother giving birth to a 31 pound baby. offspring are cared for through maternity colony. where females congregate to bear and raise the young male bats do not help in raising them. the blowhole was first on their nose but after millions of years of evolution the blowhole moved to the top of their head. bats are divided into two suborders, megachiroptera (big bat) and microchiroptera.. ( small bat) the biggest bat has a wingspan of 6 feet and the smallest a wingspan of hardly an inch! a single brown bats lifespan usually holds until its 30's .. the oldest for it's size. Did you know? A single little brown bat can eat up to 1000 mosquitos in an hour. Did you know?
Giant flying foxes in Indonesia have a wingspan of 6 feet? Sources Biology Textbook
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