Category Archives: AP Biology

Factors in the Rise of Mammals

Teeth have played an important role in the evolution of mammals as they help determine the specific diet organism can have. Those who are born without teeth are often those who grow a single set of baby and eventually adult … Continue reading

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Ascent of the Mammal

The Rise of Placental Mammals The pace of evolution that is responsible for the rise of placental mammals is gradualism. Gradualism is defined by small and gradual changes that accumulate into significant phenotypic differences over long periods of time. The … Continue reading

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Teeth Are Key (to the Rise of Mammals)

Teeth in early mammal forms were revolutionary, they enabled mammal young to nurse on their mother’s milk while they had no (or baby) teeth. This allowed them to grow faster, survive more often and live in cold environments due to … Continue reading

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Ascent of Mammals

This was a very interesting piece of writing to read because it really showed  a timeline of how all these mammals and fossils were introduced to us. I have never really had much of an interest in dinosaurs and the … Continue reading

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Ascent of the Mammals: Groundwork by Evolution

The ascent of the mammals was a long process indeed, one that actually contradicts many of the previous theories of how it occurred. Originally, it was believed that mammaliaforms– the closest relatives of true mammals– and eventually primitive mammals stayed … Continue reading

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The Ascent of Mammals

Molars, specifically the tribosphenic molars, were considered a game-changer. Because of how the teeth are arranged, the upper and lower molars worked together like a mortar and pestle, making it easier to break down certain foods and widening the mammal’s … Continue reading

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Ascent of the Mammals: Our Teeth and Jaw

It would make sense for mammals to have evolved from something small to the various sizes we have to day. However, I taken by surprise by how our teeth and our jaws played an important role climbing up the biological … Continue reading

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