We define a genetic species as a group of genetically compatible interbreeding natural
populations that is genetically isolated from other such groups. This focus on genetic …

Available data on karyotypes of the mammals from Turkey and neighbouring regions (the
Balkans, the Caucasus, and the Middle East) were summarized and reviewed in respect of …

Abstract The Korean Peninsula and its associated Pacific islands have a distinctive, yet
poorly studied mammalian fauna. Korea was a land of invasions and wars for many …

Humans stand out among the apes by having both an extremely large brain and a relatively
high reproductive output, which has been proposed to be a consequence of cooperative …

Flying animals may experience a selective constraint on gut volume because the energetic
cost of flight increases and maneuverability decreases with greater digesta load. The small …

Arvicolinae is one of the most impressive placental radiations with over 150 extant and
numerous extinct species that emerged since the Miocene in the Northern Hemisphere. The …

Sperm competition favors increases in relative testes mass and production efficiency, and
changes in sperm phenotype that result in faster swimming speeds. However, little is known …

Rodentia is the most diverse order among mammals, with more than 2,000 species currently
described. Most of the time, species assignation is so difficult based on morphological data …

Oceanic islands have been a test ground for evolutionary theory, but here, we focus on the
possibilities for evolutionary study created by offshore islands. These can be colonized …

The level of genetic differentiation within and between evolutionary lineages of the common
vole (Microtus arvalis) in Europe was examined by analyzing mitochondrial sequences from …