A basic knowledge about mutation rates is central to our understanding of a myriad of
evolutionary phenomena, including the maintenance of sex and rates of molecular …

Sexual reproduction is a nearly universal feature of eukaryotic organisms. Given its ubiquity
and shared core features, sex is thought to have arisen once in the last common ancestor to …

The impressive body of work on the major evolutionary transitions in the last 20 y calls for a
reconstruction of the theory although a 2D account (evolution of informational systems and …

Sexual reproduction is a fundamental aspect of life. It is defined by the occurrence of meiosis
and the fusion of two gametes of different sexes or mating types. Sex-determination …

Living things are organized in a hierarchy of levels. Genes group together in cells, cells
group together in organisms, and organisms group together in societies. Even different …

Abstract'Out-of-body'experiences (OBEs) are curious, usually brief sensations in which a
person's consciousness seems to become detached from the body and take up a remote …

Multicellular filaments from the ca. 1200-Ma Hunting Formation (Somerset Island, arctic
Canada) are identified as bangiacean red algae on the basis of diagnostic cell-division …

Sexual reproduction in eukaryotes is accomplished by meiosis, a complex and specialized
process of cell division that results in haploid cells (eg, gametes). The stereotypical reductive …

Eukaryogenesis, the origin of the eukaryotic cell, represents one of the fundamental
evolutionary transitions in the history of life on earth. This event, which is estimated to have …

The origin of eukaryotes is among the most contentious debates in evolutionary biology,
attracting multiple seemingly incompatible theories seeking to explain the sequence in …