Figure 2: Genetic variation within three butterfly species. Three different butterfly species (top row) show distinct wing colors and patterns.

The genomic hypothesis offers a second explanation for the decline of within-species variation over time. According to this idea, internal processes in the organism were the key factors.

The genomic hypothesis offers a second explanation for the decline of within-species variation over time. According to this idea, internal processes in the organism were the key factors.

The variation within a single species has produced differences as large as those between two separate species. Credits: Illustration by Randy Schmieder. Reprinted from Life on the Edge: ...

Researchers commonly use variation within modern species as benchmarks for acceptable ranges and patterns of variation (e.g., McNulty, 2003, 2005; Baab et al., 2010), but even this can be ...

It relates to the recognition of an approximation of a biological species constant called T (-1.61) with an associated standard deviation which expresses the variation within a species through ...

Interannual variation selects alternate genetic makeups and alternate phenotypes in opposite years, allowing variation to persist.” Since the genetic makeup of seep monkey flowers is so well-adapted ...

A new genetic link to dwarfism could shake up the anthropological world as well. Jan. 3, 2008 — -- In a discovery that could help boost understanding of a rare type of dwarfism, researchers ...

Among gut microbes, strains, not just species, matter Date: January 29, 2015 Source: University of Washington Health Sciences/UW Medicine Summary: Sophisticated genomic techniques now allow ...

Among gut microbes, strains, not just species, matter First large-scale analysis completed of intra-species genetic variation in the gut's resident organisms ...