Definitions for macroevolution
ˌmæk roʊˌɛv əˈlu ʃən; esp. Brit. -ˌi və-macroevo·lu·tion

Princeton's WordNetRate this definition:0.0 / 0 votes

1. macroevolutionnoun

   evolution on a large scale extending over geologic era and resulting in the formation of new taxonomic groups

WiktionaryRate this definition:0.0 / 0 votes

1. macroevolutionnoun

   Large-scale patterns or processes in the history of life, including the origins of novel organism designs, evolutionary trends, adaptive radiations and extinctions.

WikipediaRate this definition:0.0 / 0 votes

1. Macroevolution

   Macroevolution usually means the evolution of large-scale structures and traits that go significantly beyond the intraspecific variation found in microevolution (including speciation). In other words, macroevolution is the evolution of taxa above the species level (genera, families, orders, etc.).Macroevolution is often thought to require the evolution of completely new structures such as entirely new organs. However, fundamentally novel structures are not necessary for dramatic evolutionary change. For instance, the evolution of mammal diversity in the past 100 million years has not required any major innovation. All of this diversity can be explained by modification of existing organs. In most cases, macroevolution cannot be observed directly because numerous mutations are required for large-scale changes. Hence specific methods are required to study and prove it. However, in rare cases single mutations can cause dramatic change and thus serve as models for macro-evolutionary processes.

ChatGPTRate this definition:0.0 / 0 votes

1. macroevolution

   Macroevolution refers to evolution on a scale of separated gene pools. It typically involves large scale evolutionary changes and patterns that occur over long periods of time, leading to new species, genera, families, orders or higher taxonomic levels. This term is used to contrast with microevolution, which refers to smaller evolutionary changes within a species or population. Examples of macroevolution include the emergence of new structures and functions, extinction events, and adaptive radiation.

WikidataRate this definition:0.0 / 0 votes

1. Macroevolution

   Macroevolution is evolution on a scale of separated gene pools. Macroevolutionary studies focus on change that occurs at or above the level of species, in contrast with microevolution, which refers to smaller evolutionary changes within a species or population. Contrary to claims by creationists, macro and microevolution describe fundamentally identical processes on different time scales. The process of speciation may fall within the purview of either, depending on the forces thought to drive it. Paleontology, evolutionary developmental biology, comparative genomics and genomic phylostratigraphy contribute most of the evidence for the patterns and processes that can be classified as macroevolution. An example of macroevolution is the appearance of feathers during the evolution of birds from theropod dinosaurs. Abrupt transformations from one biologic system to another, for example the passing of life from water into land or the transition from invertebrates to vertebrates, are rare. Few major biological types have emerged during the evolutionary history of life and most of them survive till today. When lifeforms take such giant leaps, they meet little to no competition and are able to exploit a plethora of available niches, following a pattern of adaptive radiation. This can lead to convergent evolution, where unrelated populations display similar adaptations.

Matched Categories

1. • Evolution

How to pronounce macroevolution?

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How to say macroevolution in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of macroevolution in Chaldean Numerology is: 7

2. Pythagorean Numerology

   The numerical value of macroevolution in Pythagorean Numerology is: 3

Examples of macroevolution in a Sentence

1. Günter Bechly:

   If a theory and its proponents stubbornly refuse falsification by an ever increasing body of substantial conflicting evidence, the theory degenerates into a textbook example of dogmatic pseudo-science. The neo-Darwinian theory of macroevolution has failed on all fronts, from mathematical feasibility, to theoretical plausibility and explanatory power, to empirical support.

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=macroevolution
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Macroevolution
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Macroevolution
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=macroevolution