Primates of the Caribbean: Ancient DNA reveals history of mystery monkey
Mon, 12 Nov 2018 19:16:45 EST
Analysis of ancient DNA of a mysterious extinct monkey named Xenothrix -- which displays bizarre body characteristics very different to any living monkey -- has revealed that it was in fact most closely related to South America's titi monkeys (Callicebinae). Having made their way overwater to Jamaica, probably on floating vegetation, their bones reveal they subsequently underwent remarkable evolutionary change.
Ancient DNA evidence reveals two unknown migrations from North to South America
Thu, 08 Nov 2018 14:24:21 EST
A team has used genome-wide ancient DNA data to revise Central and South American history. Their analysis of DNA from 49 individuals spanning about 10,000 years in Belize, Brazil, the Central Andes, and southern South America has concluded that the majority of Central and South American ancestry arrived from at least three different streams of people entering from North America, all arising from one ancestral lineage of migrants who crossed the Bering Strait.
Broad genome analysis shows yeasts evolving by subtraction
Thu, 08 Nov 2018 14:23:21 EST
An unprecedented comparison of hundreds of species of yeasts has helped geneticists brew up an expansive picture of their evolution over the last hundreds of millions of years, including an analysis of the way they evolved individual appetites for particular food sources that may be a boon to biofuels research.
The teeth of Changchunsaurus: Rare insight into ornithopod dinosaur tooth evolution
Wed, 07 Nov 2018 14:34:52 EST
The teeth of Changchunsaurus parvus, a small herbivorous dinosaur from the Cretaceous of China, represent an important and poorly-known stage in the evolution of ornithopod dentition, according to a study.
Origin of the periodicity of the genome explained
Fri, 02 Nov 2018 09:48:18 EDT
Scientists have researched what might have favored the periodicity of certain base pairs in the genomes of eukaryotic organisms.