Invisible NatureExplore the hidden forces of sight, sound, touch, and smell that lie beyond human senses but which animals use in amazing ways. There are sounds no human ear can hear, scents no one can smell, colours our eyes cannot detect, and waves of radiation that pass right through us without our noticing. Yet, these are known and utilised by many different animal species. They present both dangers and uses, and are vital to all life on Earth. This fascinating