Changing Ideas in Science

Changing Ideas in Science The Platypus Enigma The duckbilled duckbilled duckbilled platypus is a mammal that has many features that separates it from former(a) mammals - it lays eggs, there is an absence of h anest teeth and mammary glands. It also has fur like early(a) mammals, but has a beak similar to the bill of a duck, webbed feet and a tail like a beaver. The platypus is a very curious creature to the scientific sleeper and has created debate to where it is a mammal and how it should be categorise. During the past cc years, scientists have been interested and have had changing ideas about the platypus. In 1978 the first specimen on platypus was sent to Britain and British naturalist George Shaw, studied the platypus and suspected that the specimen he had studied was a hoax. Scientists at that time thought that mortal had stitched to take downher parts from various animals to create this iodin creature. However, close and detail examination showed that the speci men was indeed real. later on it was established that the platypus was real, scientist were now faced with the problem of placing it into a classification group. They didnt know whether it was a mammal because of its fur, a reptile because of its webbed feet or a duck because it had a duck-like bill. From 1800-1830s it was classified as all three groups.

In 1836, while encumbrance Australia on the HMS Beagle, Charles Darwin take downd the platypus and questioned whether it mogul have ii creators. This contributed to his idea of evolution. Until 1884, the reproductive method of the platypus was unknown. In 1883 Will iam Caldwell arrived in Australia and spent ! his time studying the platypus. With the help of the Aboriginal people, Caldwell observe an egg-laying female platypus. The platypus reproductive structures are very more(prenominal) than like reptiles. In 1904 the Scientific American reported that uneven mammals do not possess teeth when adults. This meant that the platypus susceptibility be a mammal. Until 1973, it was thought that platypuses could not regulate...If you want to pop out a full essay, order it on our website: OrderCustomPaper.com

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