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What is a biological species?
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The biological species concept states that a species is a group of actually or potentially interbreeding natural populations which are reproductively isolated from other such groups.
- Measuring Species Diversity
Species-area curves show the relationship between the area...
- 18.2A: The Biological Species Concept
A species is a group of individual organisms that interbreed...
- Measuring Species Diversity
- Species Definition
- Examples of Species
- Related Biology Terms
- Quiz
A species is a group of organisms that share a genetic heritage, are able to interbreed, and to create offspring that are also fertile. Different species are separated from each other by reproductive barriers. These barriers can be geographical, such as a mountain range separating two populations, or genetic barriers that do not allow for reproduct...
Polar bears and Grizzlies
Oftentimes the only barrier to reproduction is geographic, or based on the physical location of the animals. If this changes, the animals can interbreed, and may merge into one species. This is currently being seen in the wild in polar bears and grizzly bears. As the climate changes, polar bears are forced further south, and must start exploiting different food sources. The change in climate also allows grizzly bears to venture further north, encountering polar bears along the way. The previo...
Dogs and Wolves
Still other animals, like dogs and wolves, are still technically the same species. While they have the same number of chromosomes and could technically breed, the domestic dog has come a long way from its wild counterpart. Dogs have not only evolved to be more cuddly and soft, but are attuned to human social cues. Wolves operate in a much different social structure. As such, the two are very unlikely to breed in the real world. However, because they can create fertile offspring, scientists co...
Hybrid– An organism produced by the crossing of two distinct species.Reproductive Barriers– Obstacles that prevent two animals from producing fertile offspring.Binomial Nomenclature– The system of naming individual species with two Latin names, the first related to their genus, the second to their species.Taxonomical Hierarchy– The system into which all organisms are placed for classification.1. Domestic ferrets and wild black-footed ferrets look almost identical. The black-footed ferret, Mustela nigripes, is native to North America. The domestic ferret, Mustela putorius furo, is native to Europe and only exists in captivity in North America. Could these two populations be one species? A. No B. Yes C.Maybe 2. If scientists tell species ...
Oct 30, 2024 · Species, a level of biological classification comprising related organisms that share common characteristics and are capable of interbreeding. According to standard taxonomic conventions, every species is assigned a standard two-part name of genus and species.
Jul 9, 2023 · Several attempts have been made to define a species, and many explanations have been proposed. For example, some tried to delineate based on physical appearance, others on ancestry. However, this page will explore the most famous and widely accepted concept – the biological species concept.
A biological species is a group of organisms that can reproduce with one another in nature and produce fertile offspring. Species are characterized by the fact that...
Oct 31, 2023 · A species is a group of individual organisms that interbreed and produce fertile, viable offspring. According to this definition, one species is distinguished from another when, in nature, it is not possible for matings between individuals from each species to produce fertile offspring.
An educational resource that explains the concept of biological species and how they are defined in nature.
