Robert Hooke was a 17th century scientist who had scientific ideas about biological evolution and was attributed with investigating the expansion of matter. Hooke investigated a broad range of scientific subjects, including biology, geology, palaeontology and astronomy.
After attending Oxford, Hooke became the Curator of Experiments at the Royal Society of London. During his career, Hooke conceived the compound microscope, which helped in his research of insects, sponges, feathers and plant cells. Hooke used his microscope to study fossils and dispelled the common theory of the time that fossils grew within the earth and were not former living creatures. Hooke was one of the first to realize that many fossils were the remains of animals that were extinct.