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Showing posts with the label Genetics

Study sheds light on the genetic origins of the two sexes

A new study published in the journal Communications Biology has shed light on the earliest stages in the evolution of male-female differentiation and sex chromosomes--and found the genetic origins o…

Discovery sheds light on ancient cell structure

New research by University of Alberta cellular biologists is putting into question existing theories about what's responsible for organizing a central part of our cells, known as the Golgi appara…

Smallest monkey's evolutionary secret

Evolutionary biologists have now discovered that the Pygmy Marmoset – the world’s smallest monkey – is not one species but two. Pygmy Marmoset [Credit: University of Salford] Weighing just 100 grams …

Two species of ravens nevermore? New research finds evidence of 'speciation reversal'

For over a century, speciation -- where one species splits into two -- has been a central focus of evolutionary research. But a new study almost 20 years in the making suggests "speciation rever…

Ancient DNA reveals genetic replacement despite language continuity in the South Pacific

New genetic research reveals the complex demographic history of Vanuatu, explaining how Austronesian languages were retained throughout its history despite near-total replacement of early Austronesia…

Researchers sequence complete genomes of extinct and living elephants

An international team of researchers has produced one of the most comprehensive evolutionary pictures to date by looking at one of the world's most iconic animal families - namely elephants, and …

Geological change confirmed as a factor behind the extensive diversity in tropical rainforests

The tropical rainforests of Central and South America are home to the largest diversity of plants on this planet. Nowhere else are there quite so many different plant species in one place. However, t…

Ancient DNA study reveals the prehistory of Southeastern Europe

In an ancient DNA study published this week in the journal Nature , scientists and archaeologists from over 80 different institutions lift the veil on the genomic history of Southeastern Europe, a re…

Why are there so many types of lizards?

Lizards have special superpowers. While birds can regrow feathers and mammals can regrow skin, lizards can regenerate entire structures such as their tails. Despite these differences, all have evolve…

Pots, people and knowledge transfer

In the Late Neolithic, a new style of pottery appears among the grave goods buried with the dead in many parts of Europe. A new genetic study shows that, with one exception, its dissemination was not…

Surprising new study redraws family tree of domesticated and 'wild' horses

There are no such things as "wild" horses anymore. Research published in Science overturns a long-held assumption that Przewalski's horses, native to the Eurasian steppes, are the last…

A protein that self-replicates

ETH scientists have been able to prove that a protein structure widespread in nature – the amyloid – is theoretically capable of multiplying itself. This makes it a potential predecessor to molecules…

Loops, loops, and more loops: This is how your DNA gets organised

It’s so impressive: a living cell is able to neatly package a big jumble of DNA, over two meters in length, into tidy, tiny chromosomes while preparing for cell division. For over a century, it has b…
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