Important people in evolution Flashcards
John ray
established the modern concept of species
Linnaeus
created the two part naming system for genus and species
Marry Anning
Worked as a fossil hunter and uncovered the first plesiosaur, her work was confirmed by Georges Cuvier, the founder of paleontology
Georges Cuvier
was a paleontologist
found that each stratum (layer of rock) was characterized by a unique group of fossils and the deeper(older) the stratum was, the more different the species were with respect to anything that was walking around during his lifetime
did not believe in evolution. He believed in catastrophism.
Charles Lyell
rejected catastrophism
believed in uniformitarianism
Jean Lamark
His theory used two common ideas of his time: 1) Traits that were acquired in an organism’s lifetime could be passed down to that organism’s offspring
2) Use and disuse - parts of the body used on a regular basis become larger and stronger; those not used would deteriorate and disappear
Thomas Malthus
wrote Essay on the Principles of Population that explained how populations might change over time • Key idea was that populations produce far more offspring than their environments can support. Only some will survive.
Alfred Wallace
made observations and conclusions independently that were similar to Darwin’s. Darwin and Wallace recognized the importance of Malthus’s essay
Darwin’s hypothesis
we all came from a common ancestor (a single organism) and different environmental conditions/habitats lead to different variations/ adaptations and great diversity. Descent with modification-natural selection is not necessarily indicative of progress (improvement) but simply change based on surviving local environmental conditions
Paleontology
the science of the form of life existing in former geologic periods, represented by their fossils
Catastrophism
the belief that certain vast geological changes in the earth’s history were caused by catastrophic events rather that slow and gradual changes
Uniformitarianism
that natural processes operated in the past in the same way and at the same rate as they operate today
Gradualism
the principle of achieving a goal by gradual steps rather than drastic change