Marco Magadan

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Scientists Have Observed Epigenetic Memories Being Passed Down For 14 Generations

The past lives on.<p>The most important set of genetic instructions we all get comes from our DNA, passed down through generations. But the environment …

80-million-year-old dinosaur collagen confirmed

Utilizing the most rigorous testing methods to date, researchers from North Carolina State University have isolated additional collagen peptides from …

Scientists Find Plants And Animals Are Evolving To Live In Cities

It's happening with surprising speed.<p>A study analyzing 1,600 cases around the world determined that plants and animals are adapting their phenotypes for the urban environment, changes that could affect the ecosystems and human well-being.<p>Phenotypes are the physical manifestation of genes. If you …

Evolution Probably Doesn't Work the Way You Think

In everyday language, the words "evolution," "progress," and "improvement" are used interchangeably. But when it comes to biological evolution, …

The sparrow with four sexes

Elaina Tuttle spent her life trying to understand the bizarre chromosome evolution of a common bird — until tragedy struck.<p>There was one sound that …

Chromosomes

The seahorse genome and the evolution of its specialized morphology

Article |<p>Open | Published: 14 December 2016<p>Qiang Lin<br>• , Shaohua Fan<br>• , Yanhong Zhang<br>• , Meng Xu<br>• , Huixian Zhang<br>• , Yulan Yang<br>• , Alison P. Lee<br>• , Joost M. …

Fossils of early tetrapods unearthed in Scotland

(Phys.org)—A team of researchers working at a dig site in Scotland has found tetrapod fossils dated to approximately 15 million years after the …

The Dino-Chickens Are Coming

"I'm not talking half a century here; I'm talking decades. It's going to happen."<p>A few years ago Bhart-Anjan Bhullar, then a Ph.D. student in Arhat …

All of Earth’s songbirds originated in Australia before island hopping their way across the globe

The songbirds that are common in gardens all across the world have a surprisingly distant origin. They all evolved from a common ancestor that emerged from what is now Australia around 24 million years ago. How they managed to leave this isolated part of the world and spread all over the planet has …

Anthropology

Found: A Missing Link in Whale Evolution

Whales are some of largest animals to ever exist on Earth, and they have an incredible evolutionary history. Modern species can be divided into two …

Washington State

Scientists witness evolution in progress, create new species in a test tube

It’s not every day that you get to see evolution happen before your eyes. Scratch that, until very recently, it wasn’t <i>any</i> day, since the process of …

New study describes 200 million years of geological evolution

Tectonic plates, big sections of Earth's crust and blocks underneath them, are constantly moving. The areas where these sections meet and interact …

51-million-year-old genetic secret to Darwin's theory unlocked

Scientists have unlocked a 51.7-million-year-old genetic secret to a landmark theory proposed by English naturalist Charles Darwin more than 150 …

Biology

A Single Neanderthal Gene Differentiates African from European Immune Systems

You would think that since we are actually all one race, the human race, we would have the same susceptibility to diseases. But in fact, there is …

Immune System

Mystery of the missing Neanderthal genes solved

Neanderthal inbreeding likely gave rise to harmful genes, lost in larger human gene pool when the species interbred.<p>Humans and Neanderthals interbred …

Caesarean births 'affecting human evolution'

<b>The regular use of Caesarean sections is having an impact on human evolution, say scientists.</b><p>More mothers now need surgery to deliver a baby due to their narrow pelvis size, according to a study.<p>Researchers estimate cases where the baby cannot fit down the birth canal have increased from 30 in …

Pregnancy

Scientists watch as a new species evolves before their eyes

The experiment provides observational proof that speciation occurs much as Darwin envisioned.<p>Speciation, the formation of new species through …

Biology

Revealed: the ancient genetic link between chimpanzees and bonobos

Bonobos are separated from chimpanzees by the River Congo, but they share more genes than we thought. Finbarr O'Reilly/Reuters<p>Peter Frandsen, <i>University of Copenhagen</i><p>Between 1.5 and 2 million years ago, chimpanzees (<i>Pan troglodytes</i>) and bonobos (<i>Pan paniscus</i>) evolved from a common ancestor and …

Evolution

Snakes Have No Legs Because of a Mutated Sonic Hedgehog Gene Enhancer

Snakes! Where are their arms and legs? It’s not ok! Over 100 million years ago, snakes did have four appendages, and then evolution stepped in to …

Why Did Snakes Lose Their Legs? Scientists Blame A Switch For The Sonic Hedgehog

A pair of University of Florida researchers says they know why snakes no longer walk the Earth: The enhancer of a gene known as the Sonic hedgehog …

Oldest fossils on Earth discovered in 3.7 billion-year-old Greenland rock

<b>(CNN) —</b> Scientists have discovered in Greenland the oldest physical evidence of life on earth -- fossils that date back 3.7 billion years.<p>If confirmed, the fossils are 220 million years older than any previously found, providing tangible evidence of ancient living organisms that offer potential …

The creationist’s nightmare: evolution in action

Over at the <i>Atlantic</i>, Ed Yong shows and describes some stunning videos of “evolution in action”: in this case bacteria evolving resistance to …

Genetic Data Reveals the World Was Populated From a Single Location

Going out together<p>We know a whole lot about our recent history, the time after civilizations started writing things down so they wouldn’t forget. For …

The secret ingredient to early life’s primordial soup: Thickener

The term "primordial soup" was coined nearly 100 years ago to describe the mysterious chemical broth that was home to Earth's very first self-replicating organisms. Ever since, scientists have been trying to cook that soup up in a lab, searching for the exact combination of compounds that gave rise …

Alien Life Model Found in Deep Earth

A microbe that lives off radioactive rocks in Earth's deepest mine reveals how life could thrive on other planets and even in interstellar space.<p>An …

Particles

To make female pill bugs, just add bacterial genes

ORLANDO, Fla. — When sex chromosomes among common pill bugs go bad from disuse, borrowed bacterial DNA comes to the rescue. Certain pill bugs grow up …

Biology

Nace el primer bebé con tres padres mediante una técnica de fertilidad realizada en México

El primer bebé con tres padres biológicos fue concebido en México, de acuerdo con <i>New Scientist</i>. El niño nació hace cinco meses gracias a una técnica …

Why do we kill? Controversial study blames our distant ancestors

Human bloodlust—from war to murder—traces back millions of years to our primate ancestors. That’s the conclusion of a controversial new study, which …

Anthropology