The questions "What are species?" and "How do we identify species ... In this page, you will learn about variation within gene pools, as well as the ways in which this variation can be an ...

The variation within a single species has produced differences as large as those between two separate species. Some critics of the theory of evolution argue that it doesn't convincingly explain ...

Learners will understand that variations can occur within a species. Learners will understand that changes in the environment can affect a species’ ability to survive and reproduce. Show your class ...

Genetic variation within a population is measured according to the number of different alleles of all genes and the frequency with which they appear. Variation is high when there are many ...

Humans are all the same species, but like dogs, individuals within the same species still have lots of variations. Humans look similar to each other, but we’re not identical. Some variation is ...

with researchers using one or a combination of these concepts to convince others they have found a new species, and not just variation within a pre-existing group. Dr Rupert Collins, our Senior ...

Extensive genetic variation is contained within a population of any species and is clearly visible in the domestic dog species, as shown in the photograph below. For example, if a mutation led to ...

Meta-analysis reveals there is no evidence that variation in clutch size in birds is driven by the reproduction–survival trade-off.