Project Description
This is the cover picture of the Magazine ( Samadhana Venpura), a NGO group which published my Art. This is the poster of my presentation during my Phd Studies. This is all about Evolution. I sketched almost 60 slides and worked on audio backgrounds for the presentation.
Scientists at the beginning of the 1800s know of some kinds of fossils, and they were very aware of homologous and vestigial structures. Many scientists suspected that some kind of evolution had given rise to living things around them. However, they had no unifying theory to explain how evolution might have occurred. Two scientists led the way in the search for a mechanism of evolution. The first was Jean Lamarck. The second was one of the greatest figures in biology, Charles Darwin.
Charles Darwin (1809-1882), like many people of genius, did not at first appear to have extraordinary talents. From a young age Darwin disliked school and preferred observing birds and collecting insects to study. He was sent to medical school in Scotland when he was 16. Young Darwin found medicine “intolerably dull.” He was much more interested in attending natural history lectures. Seeing that Darwin lacked enthusiasm for becoming a doctor, his father suggested he study for the clergy. Darwin was agreeable to the idea and enrolled in the university at Cambridge, England, in 1827. Here again, Darwin admitted, “My time was wasted, as far as the academic studies were concerned.” However, Darwin found that his friendship with John S. Henslow, professor of botany, made life in Cambridge extremely worthwhile. Through long talks with Henslow, Darwin’s knowledge of the natural world increased. Henslow encouraged Darwin in his studies of natural history. In 1831 Henslow recommended that Darwin be chosen for the position of naturalist on the ship the HMS Beagle.
When Darwin returned to England in October 1836, his collections from the voyage were praised by the scientific community. Darwin sent many specimens to experts for study. A bird specialist, or ornithologist, studied Darwin’s bird collections from the Galapagos Islands, located about 1,000 km west of South America. He reported that Darwin had collected 13 similar but separate species of finches. Each finch species had a distinctive bill specialized for a particular food source. Other experts studied Darwin’s fossils and classified them as remains of extinct mammals. The fossils included rodents the size of hippopotamuses. The similarities of the Galapagos finches led Darwin to infer that the finches shared a common ancestor. The similarities between the fossil mammals Darwin collected and modern mammals led him to believe that species change over time.
In 1837 Darwin began his first notebook on evolution. For several years Darwin filled his notebooks with facts that could be used to support the theory of evolution. He found evidence from his study of the fossil record: he observed that fossils of similar relative ages are more closely related than those of widely different relative ages. Comparing homologous structures, vestigial organs, and embryological development of living species gave him additional evidence of evolution. He consulted animal and plant breeders about changes in domestic species. He ran his own breeding experiments and also did experiments on seed dispersal.
This Presentation is all about this.Thanks to Dr. Rajendrakumar, and my Senior Dr.Rajkumar for shaping this one out.