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The one of the largest land predators to have ever lived, the mighty Tyrannosaurus rex, just crowned a new king. On March 21st, a team of University of Alberta scientists described the oldest and largest T. rex ever found. Scotty’s unearthed fossils reveals a fairly complete set of bones including a hips, limbs, and…

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Sexually reproducing animals have their sex determined through many mechanisms. Sex in reptiles such as alligators is determined by egg temperature during incubation. Some species, like the clownfish, can be hermaphroditic, shifting from one gender to another depending on the environmental conditions. However, most…

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Up to about 200 years ago, the passenger pigeon was one of the most numerous vertebrate animals on Earth. The species had an estimated 3 to 5 billion individuals at the peak of its existence and had such big flock sizes that they were known to block out the sun. However, this changed during the early 1800s when they…

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Genes are the blueprints of organisms. Your hair color, height, voice, and many other traits, all are determined by the genes. You inherited half of these genes from your mother and half from your father when you were conceived. However, every once in a while some genes that aren’t part of your family tree will sneak…

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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…