Over the last three decades, mitochondrial DNA has been the most popular marker of
molecular diversity, for a combination of technical ease‐of‐use considerations, and …

ABSTRACT A common, long‐held belief is that metabolic rate drives the rates of various
biological, ecological and evolutionary processes. Although this metabolic pacemaker view …

Many evolutionary biologists are concerned with the tremendous amount of diversity of
species, and their phenotypes, that we can currently observe in nature, and one of the most …

Although sex is a fundamental component of eukaryotic reproduction, the genetic systems
that control sex determination are highly variable. In many organisms the presence of sex …

Killer whales (Orcinus orca) currently comprise a single, cosmopolitan species with a
diverse diet. However, studies over the last 30 yr have revealed populations of sympatric …

Despite hopes that the processes of molecular evolution would be simple, clock-like and
essentially universal, variation in the rate of molecular evolution is manifest at all levels of …

Evidence is accumulating that rates of molecular evolution vary substantially between
species, and that this rate variation is partly determined by species characteristics. A better …

Extrachromosomal circular DNA (eccDNA) elements of chromosomal origin are known to be
common in a number of eukaryotic species. However, it remains to be addressed whether …

The evidence that parasitic animals exhibit elevated mitogenomic evolutionary rates is
inconsistent and limited to Arthropoda. Similarly, the evidence that mitogenomic evolution is …

Various nucleotide substitution models have been developed to accommodate among
lineage rate heterogeneity, thereby relaxing the assumptions of the strict molecular clock …