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In biology, evolution is how populations change over time from their common ancestor. This process has been happening on Earth since life first began, over 3.5 billion years ago. Evolution, however; is not driven by one factor, but many, from climate conditions to predator/prey relationships. And even now, 3.5 billion…

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For most types of cancer, survival rates have steadily been improving since the 1970s as medical advancements have been made in both cancer diagnosis as well as in treatment. Some of the largest improvements seen have been in the most common cancer types such as prostate cancer, leukaemia, and female breast cancer.…