Evolution News

June 17, 2025

Top Headlines

New Velvet Worm Species a First for the Arid Karoo

May 30, 2025 — A new species of velvet worm, Peripatopsis barnardi, represents the first ever species from the arid Karoo, which indicates that the area was likely historically more forested than at present. In the Cape Fold Mountains, we now know that every ...

Long Shot Science Leads to Revised Age for Land-Animal Ancestor

May 29, 2025 — The fossils of ancient salamander-like creatures in Scotland are among the most well-preserved examples of early stem tetrapods -- some of the first animals to make the transition from water to land. Thanks to new research, scientists believe that ...

Leprosy Existed in America Long Before Arrival of Europeans

May 29, 2025 — Long considered a disease brought to the Americas by European colonizers, leprosy may actually have a much older history on the American continent. Scientists reveal that a recently identified second species of bacteria responsible for leprosy, ...

Europe's Most Complete Stegosaurian Skull Unearthed in Teruel, Spain

May 29, 2025 — Palaeontologists have analyzed the most complete stegosaurian skull ever found in Europe and rewritten the evolutionary history of this iconic group of ...

Bed Bugs Are Most Likely the First Human Pest, New Research Shows

May 28, 2025 — Researchers compared the whole genome sequence of two genetically distinct lineages of bed bug, and their findings indicate bed bugs may well be the first true urban ...

Mystery of 'Very Odd' Elasmosaur Finally Solved: Fiercely Predatory Marine Reptile Is New Species

May 23, 2025 — A group of fossils of elasmosaurs -- some of the most famous in North America -- have just been formally identified as belonging to a 'very odd' new genus of the sea monster, unlike any previously ...

Different Phases of Evolution During Ice Age

May 23, 2025 — Cold-adapted animals started to evolve 2.6 million years ago when the permanent ice at the poles became more prevalent. There followed a time when the continental ice sheets expanded and contracted and around 700,000 years ago the cold periods ...

Toothache from Eating Something Cold? Blame These Ancient Fish

May 22, 2025 — New research shows that dentine, the inner layer of teeth that transmits sensory information to nerves inside the pulp, first evolved as sensory tissue in the armored exoskeletons of ancient ...

Ancient DNA Used to Map Evolution of Fever-Causing Bacteria

May 22, 2025 — Researchers have analyzed ancient DNA from Borrelia recurrentis, a type of bacteria that causes relapsing fever, pinpointing when it evolved to spread through lice rather than ticks, and how it gained and lost genes in the ...

Scientists Have Figured out How Extinct Giant Ground Sloths Got So Big and Where It All Went Wrong

May 22, 2025 — Scientists have analyzed ancient DNA and compared more than 400 fossils from 17 natural history museums to figure out how and why extinct sloths got so ...

'Selfish' Genes Called Introners Proven to Be a Major Source of Genetic Complexity

May 22, 2025 — A new study proves that a type of genetic element called 'introners' are the mechanism by which many introns spread within and between species, also providing evidence of eight instances in which ...

On the Origin (and Fate) of Plants That Never Bloom

May 20, 2025 — Plants that reproduce exclusively by self-pollination arise from populations with extremely low diversity to begin with. The research not only adds a facet to possible evolutionary strategies, but also lends weight to Darwin's suspicion that this ...

Latest Headlines

updated 3:26am EDT

Asian Elephants Have Larger Brains Than Their African Relatives

May 20, 2025 — African elephants are the largest land animals on earth and significantly larger than their relatives in Asia, from which they are separated by millions of years of evolution. Nevertheless, Asian ...

Scientists Use Fossils to Assess the Health of Florida's Largest Remaining Seagrass Bed: Surprisingly, It's Doing Well!

May 16, 2025 — A new study shows that seagrass ecosystems along the northern half of Florida's Gulf Coast have remained relatively healthy and undisturbed for the ...

Asians Made Humanity's Longest Prehistoric Migration and Shaped the Genetic Landscape in the Americas

May 16, 2025 — A groundbreaking international study has revealed that early Asians undertook humanity s longest known prehistoric migration walking more than 20,000 ...

Australia's Oldest Prehistoric Tree Frog Hops 22 Million Years Back in Time

May 14, 2025 — Scientists have now discovered the oldest ancestor for all the Australian tree frogs, with distant links to the tree frogs of South ...

Fossil Tracks Show Reptiles Appeared on Earth Up to 40 Million Years Earlier

May 14, 2025 — The origin of reptiles on Earth has been shown to be up to 40 million years earlier than previously thought -- thanks to evidence discovered at an ...

Dexterity and Climbing Ability: How Ancient Human Relatives Used Their Hands

May 14, 2025 — Scientists have found new evidence for how our fossil human relatives in South Africa may have used their hands. Researchers investigated variation ...

UV Light and CT Scans Helped Scientists Unlock Hidden Details in a Beautifully-Preserved Fossil Archaeopteryx

May 14, 2025 — Archaeopteryx is the fossil that clearly demonstrated Darwin's views. It's the oldest known fossil bird, and it helps show that all birds -- ...

From Prehistoric Resident to Runaway Pet: First Tegu Fossil Found in the U.S.

May 12, 2025 — Originally from South America, the charismatic tegu made its way to the United States via the pet trade of the 1990s. But a recent discovery shows ...

Researchers Map 7,000-Year-Old Genetic Mutation That Protects Against HIV

May 9, 2025 — Modern HIV medicine is based on a common genetic mutation. Now, researchers have traced where and when the mutation arose -- and how it protected our ancestors from ancient ...

New Ancient Fish Species Earliest Known Salmon Ancestor

May 9, 2025 — The Arctic landscape during the Cretaceous Period may have been dominated by the dinosaurs, but the rivers and streams held something more familiar. Alaska's fresh waters 73 million years ago were ...

160 Million Years Ago, This Fungus Pierced Trees Like a Microscopic Spear

June 8, 2025 — In a paper published in National Science Review, a Chinese team of scientists highlights the discovery of well-preserved blue-stain fungal hyphae within a Jurassic fossil wood from northeastern ...

First Fossil Evidence of Endangered Tropical Tree Discovered

May 9, 2025 — Scientists have discovered fossil evidence of an endangered, living tropical tree species. The unprecedented find was made in Brunei, a country on the large island of Borneo, and reveals a critical ...

Triassic Fossil Reveals Nature's Best Jaw for Hunting Fast Fish

May 7, 2025 — Newly discovered species of extinct fish shows striking similarities to unrelated modern-day predators, suggesting certain traits have emerged multiple times and remained consistent over hundreds of ...

Comb Jellies Reveal Ancient Origins of Animal Genome Regulation

May 7, 2025 — Life depends on genes being switched on and off at exactly the right time. Even the simplest living organisms do this, but usually over short distances across the DNA sequence, with the on/off switch ...

T. Rex's Direct Ancestor Crossed from Asia to North America

May 6, 2025 — Tyrannosaurus rex evolved in North America, but its direct ancestor came from Asia, crossing a land bridge connecting the continents more than 70 million years ago, according to a new ...

New Drone-Assisted 3D Model Offers a More Accurate Way to Date Dinosaur Fossils

May 6, 2025 — A new study is reshaping how scientists date dinosaur fossils in Alberta's Dinosaur Provincial Park (DPP). Using advanced drone-assisted 3D mapping, researchers have uncovered significant ...

A Fully Automated Tool for Species Tree Inference

May 5, 2025 — Engineers are making it easier for researchers from a broad range of backgrounds to understand how different species are evolutionarily related, and support the transformative biological and medical ...

Genomic Survey Uncovers Evolutionary Origins of Secretoglobins

May 5, 2025 — At a conference in Washington D.C. in 2000, the secretoglobin super family of proteins was named to classify proteins with structural similarities to its founding member uteroglobin. Now, 25 years ...

Giant Croclike Carnivore Fossils Found in the Caribbean

Apr. 29, 2025 — Imagine a crocodile built like a greyhound -- that's a sebecid. Standing tall, with some species reaching 20 feet in length, they dominated South American landscapes after the extinction of ...

'Extremely Rare Event': Bone Analysis Suggests Ancient Echidnas Lived in Water

Apr. 28, 2025 — New research questions the evolutionary history of some of our most peculiar ...

The Oldest Ant Ever Discovered Found Fossilized in Brazil

Apr. 24, 2025 — A 113-million-year-old hell ant that once lived in northeastern Brazil is now the oldest ant specimen known to science, finds a new report. The hell ant, which was preserved in limestone, is a member ...

What Rattlesnake Venom Can Teach Us About Evolution: New USF Study

Apr. 23, 2025 — A new study found that some rattlesnakes are producing simpler venoms containing fewer and more focused toxin families than complex venoms -- a surprising discovery that challenges long-held ideas ...

Unlocking the Genetic Basis of Adaptive Evolution: Study Reveals Complex Chromosomal Rearrangements in a Stick Insect

Apr. 18, 2025 — Scientists report adaptive divergence in cryptic color pattern is underlain by two distinct, complex chromosomal rearrangements, where millions of bases of DNA were flipped backwards and moved from ...

Environmental Variability Promotes the Evolution of Cooperation Among Humans: A Simulation-Based Analysis

Apr. 18, 2025 — Researchers have demonstrated that intensified environmental variability (EV) can promote the evolution of cooperation through simulation based on evolutionary game theory. This result offers a new ...

The Eukaryotic Cell Emerged as an Evolutionary Algorithmic Phase Transition

Apr. 21, 2025 — An international collaboration has published groundbreaking research, shedding light on the most significant increase in complexity in the history of life's evolution on Earth: the origin of the ...

Secret to Crocodylian Longevity

Apr. 16, 2025 — Researchers examined teeth and skulls of 99 extinct crocodylomorph species and 20 living crocodylian species to reconstruct their dietary ecology and identify characteristics that helped some groups ...

Mammoth Genetic Diversity Throughout the Last Million Years

Apr. 9, 2025 — A new genomic study has uncovered long-lost genetic diversity in mammoth lineages spanning over a million years, providing new insights into the evolutionary history of these ...

Ancient Fossil Sheds Big Light on Evolution Mystery: Solving a 100-Year Arthropod Mystery

Apr. 8, 2025 — Researchers formally describe Helmetia expansa, offering new insights into its anatomy, behavior and evolutionary ...

Dinosaurs' Apparent Decline Prior to Asteroid May Be Due to Poor Fossil Record

Apr. 8, 2025 — The idea that dinosaurs were already in decline before an asteroid wiped most of them out 66 million years ago may be explained by a worsening fossil record from that time rather than a genuine ...

Machine Learning Helps Construct an Evolutionary Timeline of Bacteria

Apr. 3, 2025 — Scientists have helped to construct a detailed timeline for bacterial evolution, suggesting some bacteria used oxygen long before evolving the ability to produce it through ...