The Nazca lines of Peru have fascinated archaeologists for centuries and now scientists say they have discovered 143 new drawings previously hidden in the soil. Featuring hundreds of pictures of animals, plants and patterns, the miles of figurative drawings are only visible from nearby clifftops and the air. Researchers from Yamagata University in Japan spent years searching through high-resolution images of the lines taken from space and studying them on site in Peru. This led to the discovery of previously unknown figures depicting a range of living creatures including birds, monkeys, fish, reptiles and humanoid characters. Researchers worked with IBM's Artificial Intelligence team to discover a humanoid character within the soil (pictured) Known as geoglyphs, they were created about 2,000 years ago, at the same time as the previously discovered lines and are between 16ft and 320ft across.