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Adélie penguins
Penguins Are Among the World’s Slowest-Evolving Birds: Study
The findings mean that penguins may struggle to adapt under rapid climate change, researchers say.
Penguins Are Among the World’s Slowest-Evolving Birds: Study
Penguins Are Among the World’s Slowest-Evolving Birds: Study

The findings mean that penguins may struggle to adapt under rapid climate change, researchers say.

The findings mean that penguins may struggle to adapt under rapid climate change, researchers say.

evolutionary biology, genetics & genomics

Illustration of a DNA virus sneaking genetic material into a host’s nucleus
Infographic: Possible Mechanisms of Gene Transfer in Eukaryotes
Christie Wilcox, PhD | Jul 5, 2022 | 6 min read
Genetic studies have made it clear that eukaryotic horizontal gene transfer can and does happen. Exactly how, though, remains speculative.
Cow image
Slideshow: Examples of Eukaryotic Horizontal Gene Transfer
Christie Wilcox, PhD | Jul 5, 2022 | 4 min read
Horizontally transferred genes play significant roles in eukaryotic genomes
Landscape illustration
Horizontal Gene Transfer Happens More Often Than Anyone Thought
Christie Wilcox, PhD | Jul 5, 2022 | 10+ min read
DNA passed to and from all kinds of organisms, even across kingdoms, has helped shape the tree of life, to a large and undisputed degree in microbes and also unexpectedly in multicellular fungi, plants, and animals.
Drosophila melanogaster on cactus leaf
Fruit Flies Evolve in Time with the Seasons: Study
Natalia Mesa, PhD | Mar 17, 2022 | 5 min read
Researchers find that evolution can operate on extraordinarily fast timescales.
Sunflowers, in visible spectrum on left half (yellow colors) and UV spectrum on right half (purple and white colors).
Sunflowers’ Bee-Attracting Ultraviolet Also Helps Retain Moisture
Natalia Mesa, PhD | Feb 8, 2022 | 5 min read
The dual purposes of the plants’ hidden colors may conflict as the climate warms, authors of a new study suggest.
a spiny mouse sits on a piece of wood holding a small morsel to its mouth
Spiny Mice Appear to Regenerate Damaged Kidneys
Dan Robitzski | Nov 3, 2021 | 5 min read
The mice, already known to regenerate skin, seem to avoid the tissue scarring that leads to organ failure in other animals.
3 by 5 grid of black and white photos of indigenous Filipino portraits
Indigenous Filipino Group Has Highest Known Denisovan Ancestry
Annie Melchor | Aug 13, 2021 | 3 min read
Researchers found the relatively high proportion of DNA from a hominin cousin—nearly 5 percent—when they scanned more than 1,000 genomes from 118 distinct ethnic groups.
A microscopy image of several endometrial stromal fibroblasts
Gene Offers Clue to How Human Labor Starts
Christie Wilcox, PhD | Aug 1, 2021 | 2 min read
Genes associated with preterm birth and protecting the fetus from the mother’s immune system appear to be regulated by HAND2.
More Images
An artist's depiction of a new species of Homo, H. longi
“Dragon Man” May Replace Neanderthal as Our Closest Relative
Amanda Heidt | Jun 25, 2021 | 8 min read
A massive, well-preserved skull discovered in China in the 1930s belongs to a new species called Homo longi, researchers report, but experts remain skeptical about the evidence.
A tasmanian devil with its nose in the air
Deadly Facial Tumors Spur Tasmanian Devil Evolution: Study
Christie Wilcox, PhD | Jun 16, 2021 | 6 min read
The largest study to date of the animals’ genetics provides robust evidence that they are adapting to survive a highly lethal, contagious cancer scientists feared would cause their extinction.
A reticulated giraffe in Samburu National Park, Kenya
Whole-Genome Data Point to Four Species of Giraffe
Ruth Williams | May 6, 2021 | 4 min read
The genome sequences of 51 giraffes from all over Africa contribute to the latest attempt in an ongoing pursuit to pin down a species number.
Hybrid Animals Are Not Nature’s Misfits
Ashley Yeager | May 1, 2021 | 8 min read
In the 20th century, animals such as mules and ligers that had parents of different species were considered biological flukes, but genetic sequencing is beginning to unravel the critical role of hybridization in evolution.
“Rogue” Protein Could Contribute to Humans’ High Cancer Rates
Asher Jones | Apr 1, 2021 | 2 min read
A mutant protein called Siglec-XII may promote carcinoma progression in humans, but inactivation of its gene seems to avoid the problem, according to a study.
model organism, zebrafish, sponge, cell &molecular biology, genetics & genomics, enhancer, transcription, non-coding DNA, gene regulation, evolution
Regulators of Gene Activity in Animals Are Deeply Conserved
Amanda Heidt | Nov 6, 2020 | 5 min read
Enhancers, short regions of DNA that direct gene expression, of species separated by 700 million years of evolution worked interchangeably, according to a new study.
How a Centipede Survives its Own Species’ Venom
Shawna Williams | Nov 1, 2020 | 2 min read
The same toxin targets different receptors in prey and conspecifics to deliver either a lethal or non-lethal blow.
Y Chromosome from Early Modern Humans Replaced Neanderthal Y
Jef Akst | Sep 24, 2020 | 5 min read
A selective advantage may have led the modern human Y chromosome to sweep through the Neanderthal population after it was introduced via interbreeding more than 100,000 years ago.
Singing Dogs, Once Thought Extinct, Found in the Wild
Lisa Winter | Sep 1, 2020 | 2 min read
A new genetic analysis confirms prior sightings in New Guinea.
Genetics Steps In to Help Tell the Story of Human Origins
Katarina Zimmer | Sep 1, 2020 | 10+ min read
Africa’s sparse fossil record alone cannot reveal our species’ evolutionary history.
Infographic: Meet Your Ancient Ancestors and Relatives in Africa
Katarina Zimmer | Sep 1, 2020 | 7 min read
Modern human genomes and bones left behind from ancient hominins in Africa tell a complex story about the origins of our species.
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