Biology Genetics 

Did Life On Earth Start as an RNA World?

By Emily Bentley You might not speak Latin, but you probably understand the concept of omnis cellula e cellula—all cells come from other cells. For several thousand years, many scholars endorsed the idea of spontaneous generation, which held that certain plants and animals are created whole from inorganic matter like dust, mud, or rotting meat. In 1668 this notion was disproved by Italian physician and biologist Francesco Redi. His experiments showed that maggots appeared only on meat that had been exposed to egg-laying flies, providing some of the first evidence…

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Biology Genetics Health 

Depression: In Our Genes or All In Our Heads?

By Mary McMillan (@maryemcmillan) World Health Organization estimated that more than 300 million people around the world are currently affected by depression. That’s just over 4 percent of the world’s population. Despite how serious this disorder is and the huge numbers of people that suffer from it, there is still a lot of stigma associated with having depression, and people often misunderstand what causes it (Jorm, 2000). You may have heard people say that depression is all in someone’s head and that they should just get over it. However, scientists…

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Biology Genetics 

Most of the Human Genome Isn’t Being Actively Studied

By Katherine Lindemann Career incentives drive researchers away from understudied genes that could be important to human health. There are around 20,000 human protein-coding genes, but recent studies have suggested scientists actively study only about 2,000 of them. New research investigates why some genes are studied over and over again, while others are neglected. Its authors found that a genes’ medical significance—how likely it is they play a role in human disease—doesn’t explain the discrepancy. Instead, while many researchers are interested in understudied genes, career incentives encourage scientists to focus on genes…

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Animals Biology Genetics Videos 

Science with Sophie: Dogs

Do dogs really exist? Okay, we know dogs really exist. But how do you know if something really exists if you can’t see it? On this episode of Science with Sophie, Sophie explores why it’s so important to do your own research, as well as how genetic traits as passed down. And as a bonus, you’ll learn all about the history of dogs, complete with at least five different canine cameos. Do the science experiment with Sophie To do the science experiment, you’ll need these things: something to write on something…

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