The Daphne Major is located in the Colon Archipelago. It has a crater composed of volcanic rocks. These rocks are made up from volcanic ashes which hardened over time. The volcano is shaped like a cone which is surrounded by trees and houses several rare birds.
Daphne major island is famous because the study of Darwin's Finches was conducted here by biologist Peter and Rosemary Grant for twenty years. The behavior and life cycle of finches was examined by them and the results supported Darwin's theory of Evolution. They spent six months each year since 1973 for capturing, tagging, taking samples and releasing the finches from the islands. This island is located in the north of Santa Cruz island in Galapagos archipelago.
Filtration is a separation method used to separate out pure substances in mixtures comprised of particles some of which are large enough in size to be captured with a porous material. Particle size can vary considerably, given the type of mixture. For instance, a mixture of boiled pasta and water.
