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In the longer term, evolution produces new species through splitting ancestral populations of organisms into new groups that cannot or will not interbreed. These outcomes of evolution are distinguished based on time scale as macroevolution versus microevolution.
Hace 5 días · Learn how evolution explains the origin and modification of living things on Earth through natural selection and genetic variation. Explore the evidence from fossils, genetics, and molecular biology that supports the modern theory of evolution.
Evolution is the process by which modern organisms have descended from ancient ancestors. Evolution is responsible for both the remarkable similarities we see across all life and the amazing diversity of that life — but exactly how does it work? Here, we’ll find out.
How do new species form? This article reviews the historical and modern views on speciation, from Darwin to genomics, and explores the role of geography, genetics, and natural selection in the process.
Evolution - Species, Speciation, Adaptation: Darwin sought to explain the splendid multiformity of the living world—thousands of organisms of the most diverse kinds, from lowly worms to spectacular birds of paradise, from yeasts and molds to oaks and orchids.
Mechanisms: the processes of evolution – Selection, mutation, migration, and more; Microevolution – Evolution within a population; Speciation – How new species arise; Macroevolution – Evolution above the species level; The big issues – Pacing, diversity, complexity, and trends; Teach Evolution. Lessons and teaching tools. Teaching ...
Evolution is a process that results in changes in the genetic content of a population over time. Explore the mechanisms of microevolution and macroevolution, and how they shape biodiversity and ecology.
