When Wallace sent his research findings to Darwin... Question 18Answer a. Darwin stole Wallace’s work and published it as his own in a major plagiarism scandal b. this prompted Darwin to finally publish his thoughts on evolution and his book “The Origin of Species” c. this created an immediate rivalry between Darwin and Wallace which resulted in frequent name-calling and hatred between the two d. Darwin corrected Wallace’s work and sent it back to him, causing Wallace to leave behind the field of biology
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Alfred Russel Wallace independently developed a theory of natural selection similar to Charles Darwin's. Show more…
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Question 1: Could the theory of the origin of species be so radical that Darwin would suppress it for 20 years? Question 2: The year before Wallace sent Darwin his paper, Darwin was working on a book on his discoveries and ideas. On the left is an excerpt from that manuscript; on the right is a passage from Wallace. Neither man had access to the other's writing. What common experiences or observations could explain the similarities in language and ideas? Darwin Wallace February to March 1857 February 1858 Down, England Halmahera, Maluku Islands Chapter 5. The Struggle for Existence as Bearing on Natural Selection The life of wild animals is a struggle for existence... Any variation, however infinitely slight, if it did promote during any part of life even in the slightest degree, the welfare of the being, such variation would tend to be preserved or selected. Perhaps all the variations... must have some documentation effect, however slight, in the habits or capacities of the individuals... A variety having slightly increased powers must inevitably in time acquire a superiority in numbers. Question 3: The making of the theory of evolution is often told through Darwin's story, with little or sometimes no mention of Wallace. What would we miss about the scientific process if Wallace were left out of the story?
Adi S.
Both Charles Darwin and Alfred Wallace started their scientific careers as naturalists hired on board of ships sailing around South America. Darwin was the first one to go on this long journey. They both had to collect and catalog as many new species of animals, plants, and fossils as possible. After a long five-year voyage, Darwin came back to London with a huge collection of specimens. The first journey for Wallace was not so successful due to illness on the ship. During his journey, Darwin spent almost five weeks on the Galapagos Islands, which at first he called "The Enchanted Isles". The time on the Galapagos Islands gave Darwin important clues for his future theory of natural selection; each island had different species of turtles and mockingbirds. In the years to come, Darwin often thought back to the geology, the fossils, and the animals that he'd seen during his journey. The best explanation for what Darwin saw in the Galápagos was that species changed into new species. Over time, one kind of mockingbird somehow became three. Tortoises multiplied into different forms. In a simple, crude sketch, Darwin drew his radical new picture of life. Any species can give rise to new and slightly different species. At that time, this type of thinking was considered heretical. It ran against church teachings and what most Europeans believed, including most scientists. When Darwin was establishing his position in London as a well-known naturalist and scientist, Wallace set out for another journey. He spent 8 years on the new voyage to the Malay Archipelago in Indonesia. He collected and studied animals as he traveled from island to island in a 14,000-mile journey. Wallace was especially captivated by butterflies. His favorite group is called "birdwings," after their shape and large size. Having explored jungles on opposite sides of the globe, he could compare where different groups of animals lived and asked why they are found where they are. Island by island, Wallace noted two groups of mammals living in the Indonesian region: those with pouches and those without. Animals on the eastern islands resemble those of Australia; animals to the west, those of Asia. It's as if a line splits the archipelago. It will be dubbed "The Wallace Line." Because of his impact on connecting biodiversity with geological localization, Alfred Wallace is considered a father of biogeography. The work of both Darwin and Wallace was influenced by the English economist Thomas Malthus, who noted that human populations are held in check by famine, disease, and death. Without death, any species would quickly overrun Earth. Animal populations tend to hold steady because huge numbers of young die every generation. If individuals have a feature/variation that gives them even a slight edge, they will survive, reproduce, and in time outnumber those without the advantageous feature. Darwin called this process "natural selection". In 1858, both Darwin and Wallace presented this theory together in London. Darwin published his own masterful full-length book in 1859, where he described the process of artificial and natural selection and explained how living organisms could have evolved from other species. The Origin of Species became one of the most influential books ever published. It was an instant sensation that signaled the birth of modern biology. Wallace eventually wrote a book on evolution. He gave it the title Darwinism.
Alexander B.
The making of a theory: Darwin, Wallace, and Natural Selection after Wallace meets Darwin; Wallace goes on another voyage. It is during that voyage that he: a) Decides that he will no longer study the natural world again. b) Unknowingly comes to the same conclusion as Darwin that species are related and can change to make new species. c) Discovers fossils similar to Darwin's. d) Darwin and Wallace discover that they are studying the same species. 6) "The making of a theory: Darwin, Wallace, and Natural Selection", Wallace observes that: a) Fossils are smaller organisms. b) Ants live in social groups. c) There are slight variations among the organisms of a given species. d) Marsupials live all around the world. 7) "The making of theory: Darwin, Wallace, and Natural Selection". Darwin and Wallace both independently conclude that those individuals with variations that give an edge will survive through natural selection. They shared credit, but: a) Darwin disliked Wallace for forcing his hand. b) They were shunned by England and had to spend the rest of their lives in France. c) They later fought for the Nobel Prize. d) Wallace agreed that Darwin reached those conclusions first. 8) The Grants have been studying the Galapagos Islands for the last 40 years, returning back every year to study one of the small islands. In that time, on that island they studied: a) Plants in the various elevations of the island. b) Lizards with various tail structures. c) Finches with varying beak sizes. d) Tortoises with various shells.
Madhur L.
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