Evolution Only Goes One Way

Evolution in a biological context roughly translates into a species' ability to favor the passing on of genes that ensure its survival into the next generation. In order for this to happen, mutations must occur. Mutations generate diversity, but can also have adverse effects on a species... [ read more >> ]

Evolution cannot go backwards. Genetic blockages inside our bodies make sure of it

Image comment: Evolution cannot go backwards. Genetic blockages inside our bodies make sure of it
Image credits: Flickr / Colin Purrington

Evolution cannot go backwards. Genetic blockages inside our bodies make sure of it