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Comparing The Penguin The Flightless Bird And The Great Northerner Diver

Decent Essays

Topic: Compare and contrast the Penguin the flightless bird and the Great Northerner diver.
I. Introduction
The two species I will be writing about is the Emperor penguin and the Great norther diver they are both are from the class Aves (Magnuson, 2007) .In addition, the emperor penguin since is in the class Aves, the penguins used to be able to flight which is an adaptive trait (Elliott et al., 2013).In addition, physiologically they look different the Emperor penguin looks bigger and can’t fly. In the other hand the common loon is small, is able to fly, and swim (Mager et al., 2017). Moreover, by using their differences and similarities the paper will be mostly about connecting the two species by using the similarities they use to have …show more content…

c. Also, emperor penguin have two lungs and air sacs that help them breathe underwater and in terrestrial environment (Ponganis PJ, 2015)
V. Common Loon Anatomy
a. The common loon body is long and heavy which not that common for birds (Padilla, 2014)
b. Wedded feet that are positioned in back of the body and unable loon to walk on land(Mager et al., 2017)
c. In addition, They have air sacs which helps them and can fill them with air so they have better flotation when they are in the water (Templeton & Mountjoy,2003).
VI. Feeding Behavior of the Emperor penguin
a. In order to be able to eat they swim and capture fish, krill, and some species of squid (Wallace, 2015)
b. Since the type of animal they eat are not in deep ocean floor they once need to dive about 20 meter to be able to feed. (Magnuson, 2007).
c. When the penguin are young they are feed by the father and mother until is able to hunt (Fretwell e al. 2014).

VII. Feeding behavior of the Common Loon
a. Common loon when capturing prey feed of fish first they follow and capture the prey (Templeton & Mountjoy,2003).
b. When loon are in lakes that have few fish their intake of food is less and as well they mobility ( Gingras & Paszkowki,2016)
VIII. Evolution of the Emperor Penguin
a. One of the most important adaptation Emperor Penguin have is the avia pulmonary and air sacs (Ponganis PJ, 2015).
b. That adaptation allows them to be able to swim under water

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