The most precious gifts in our lives, and consequently the things we happen to take for granted the most, are our senses: our vision, hearing, touch, taste, and smell – the building blocks of how we perceive and understand our world. I discovered two short and amazing videos that illustrate just how special our senses [...]

A recent study with fMRI scans reveals that when blind people use echolocation it activates parts of the brain associated with vision.