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evolution

a black wolf and a gray wolf follow a third gray wolf, whose head is tilted back to watch, as they trot through a snowy background, with light colored, barren trees in the background.
Black and Gray Wolf Pairings Stem Disease, Stabilize Population: Study
Katherine Irving | Oct 20, 2022 | 4 min read
The black fur allele has fitness costs but also confers higher immunity against canine distemper virus, making mix-and-match mating key to population survival.
illustration of virus particles and DNA strands
Ancient Viral DNA Plays a Role in Human Disease and Development
Aidan Burn, The Conversation | Oct 19, 2022 | 4 min read
Viral remnants make up 8 percent of the human genome, and a new study finds that these sequences are still active in healthy people.
illustration of DNA strands
Mitochondrial DNA Sneaks into Nuclear Genome
Holly Barker, PhD | Oct 17, 2022 | 3 min read
Genetic material pilfered from mitochondria may seal cracks in our genetic code, a study suggests.
The structure of a biological cell (macro)
The Long and Winding Road to Eukaryotic Cells
Amanda Heidt | Oct 17, 2022 | 10+ min read
Despite recent advances in the study of eukaryogenesis, much remains unresolved about the origin and evolution of the most complex domain of life.
Illustration showing the path result of Eukaryogenesis
Infographic: Evolutionary Leaps Leading to Modern Eukaryotes
Amanda Heidt | Oct 17, 2022 | 2 min read
A lot happened in the hundreds of millions years separating the first and last eukaryotic common ancestors, but when and how most features arose remains a mystery.
Tree with many scattered branches.
Scientists Resurrect Ancient Rubiscos to Understand Their Evolution
Alejandra Manjarrez, PhD | Oct 14, 2022 | 5 min read
A team proposes that the addition of a small accessory subunit to the carbon-fixing enzyme was key to improving its catalytic properties and specificity to CO2.
blue-gloved hands pipetting from test tube
What’s Next for Ancient DNA Studies After the Nobel?
Mary Prendergast, The Conversation | Oct 5, 2022 | 4 min read
The award highlights tremendous opportunities for aDNA as well as challenges related to rapid growth, equity, and misinformation.
Svante Pääbo with a skeleton
Svante Pääbo Awarded Nobel for Paleogenomics
Shawna Williams | Oct 3, 2022 | 3 min read
The geneticist’s accomplishments include sequencing Neanderthal DNA and leading the project that identified a new species of hominin, the Denisovans.
Blue Whales - Sri Lanka April 2012
The Evolutionary Shaping of Modern Whales
Connor Lynch | Oct 3, 2022 | 4 min read
A survey of more than 200 whale skulls has unveiled bursts of evolution over the past 50 million years.
Illustration of blue and gray amino acids loosely forming protein
Fungal Cold Adaptation Linked to Protein Structure Changes: Study
Patience Asanga | Sep 20, 2022 | 4 min read
Environmental pressure seems to spawn changes in the intrinsically disordered regions of enzymes in polar yeasts, allowing them to adapt to extreme cold.
Illustration of pink and blue DNA molecules.
Historic Adaptations May Now Make Us Susceptible to Disease
Dan Robitzski | Sep 16, 2022 | 5 min read
Researchers made the find using an algorithm that purportedly distinguishes between mutations that were selected for and those that came along for the ride by coincidence, a feat that has long eluded scientists.
Drawing of fish with internal anatomy.
Researchers Visualize Heart From 380-Million-Year-Old Fish
Natalia Mesa, PhD | Sep 15, 2022 | 4 min read
A team of researchers in Australia have imaged fossilized soft organs of early jawed vertebrates for the first time, finding that our ancient fish ancestors’ hearts, livers, and stomachs are strikingly similar to ours.
A California coyote above Santa Monica beach
Human Gut Bacteria Show Up in Urban Wildlife
Bianca Nogrady | Sep 12, 2022 | 2 min read
The gut microbiomes of city-dwelling animals, including coyotes, lizards, and birds, show similarities to those found in humans who also live in urban environments.
Illustration of a human and Neanderthal skull side by side.
Mutation Linked to Difference Between Human and Neanderthal Brains
Dan Robitzski | Sep 9, 2022 | 5 min read
A single amino acid substitution in a protein causes increased neuron production in the frontal lobes of humans compared to Neanderthals—a tiny difference that could have given our species a cognitive edge, researchers say.
Two donkeys interacting at the Copenhagen Zoo in Denmark
Science Snapshot: Pin the Domestication on the Donkey
Lisa Winter | Sep 8, 2022 | 1 min read
A genomic analysis reveals that humans domesticated donkeys more than 7,000 years ago.
Brown coral in shallow water branching upward with blue fish in front. 
Corals Upend Longstanding Idea About Genetic Inheritance
Natalia Mesa, PhD | Sep 1, 2022 | 4 min read
Most animals can’t pass on mutations that arise spontaneously throughout their lives—but Elkhorn corals can.
Karyotype with most chromosomes in blue, one in red and green. 
Researchers Fuse Mouse Chromosomes in Scientific First
Natalia Mesa, PhD | Aug 25, 2022 | 4 min read
The findings will likely help elucidate the effects of chromosome fusions, which can cause disease but have also contributed to evolution.
Various primate 
Science Snapshot: An Arm and A Leg
Lisa Winter | Aug 24, 2022 | 1 min read
3D modeling of 7 million-year-old hominin bones hints at bipedality occurring earlier than previously thought.
Green frog in trees with green leaves
For Frogs, Bigger Brains Mean Worse Camouflage
Natalia Mesa, PhD | Aug 23, 2022 | 3 min read
Frogs invest in cognitive capacity to avoid predators—up until there are too many hungry snakes around for the evolutionary strategy to pay off.
A black dog with tearful eyes looks at the camera
Dogs Cry Tears of Joy: Study
Christie Wilcox, PhD | Aug 22, 2022 | 6 min read
Pet dogs produce a larger volume of tears when they are reunited with their owners than with acquaintances, possibly because of surging oxytocin levels—findings that could be the first evidence of emotional crying in nonhuman animals.
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