Evolution News
July 2, 2023

Top Headlines

A Jaw-Dropping Conundrum: Why Do Mammals Have a Stiff Lower Jaw?

The lower jaws of lizards, birds, fish and even dinosaurs are comprised of multiple bones per side. Yet mammals diverged from all other vertebrates and settled on just one bone, repurposing the extra bones into a more elaborate inner ear, perhaps the better to hear. The single bone per side, fused ...

New Study Sheds Light on the Evolution of Animals

Scientists have been mystified as to why animals are missing in much of the fossil record. Researchers have now developed a new method to determine if animals really were absent during certain geological eras, or if they were present but too fragile to be ...

Humans' Ancestors Survived the Asteroid Impact That Killed the Dinosaurs

A Cretaceous origin for placental mammals, the group that includes humans, dogs and bats, has been revealed by in-depth analysis of the fossil record, showing they co-existed with dinosaurs for a short time before the dinosaurs went ...

50-Million-Year-Old Katydid Fossil Reveals Muscles, Digestive Tract, Glands and a Testicle

50 million years ago in what is now northwestern Colorado, a katydid died, sank to the bottom of a lake and was quickly buried in fine sediments, where it remained until its compressed fossil was recovered in recent years. When researchers examined ...

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Lingering Effects of Neanderthal DNA Found in Modern Humans

Recent scientific discoveries have shown that Neanderthal genes comprise some 1 to 4% of the genome of present-day humans whose ancestors migrated out of Africa, but the question remained open on how ...

Remains of an Extinct World of Organisms Discovered

Newly discovered biomarker signatures point to a whole range of previously unknown organisms that dominated complex life on Earth about a billion years ago. They differed from complex eukaryotic life ...

The Other Side of the Story: How Evolution Impacts the Environment

Researchers show that an evolutionary change in the length of lizards' legs can have a significant impact on vegetation growth and spider populations on small islands in the Bahamas. This is one ...

Geneticists Discover Hidden 'Whole Genome Duplication' That May Explain Why Some Species Survived Mass Extinctions

Geneticists have unearthed a major event in the ancient history of sturgeons and paddlefish that has significant implications for the way we understand evolution. They have pinpointed a previously ...

The Clams That Fell Behind, and What They Can Tell Us About Evolution and Extinction

A new study examined how bivalves -- the group that includes clams, mussels, scallops, and oysters -- evolved among many others in the period of rapid evolution known as the Cambrian Explosion. The ...

4,000-Year-Old Plague DNA Found -- The Oldest Cases to Date in Britain

Researchers have identified three 4,000-year-old British cases of Yersinia pestis, the bacteria causing the plague -- the oldest evidence of the plague in Britain to ...

River Erosion Can Shape Fish Evolution

一项新的研究淡水greenfin镖的鱼suggests river erosion can be a driver of biodiversity in tectonically inactive ...

Where Do Our Limbs Come From?

Scientists have uncovered new clues about the origin of paired appendages -- a major evolutionary step that remains unresolved and highly ...

Dinosaurs Were the First to Take the Perspectives of Others

Understanding that others hold different viewpoints from your own is essential for human sociality. Adopting another person's visual perspective is a complex skill that emerges around the age of ...

Fossil of Mosasaur With Bizarre 'Screwdriver Teeth' Found in Morocco

Scientists have discovered a new species of mosasaur, a sea-dwelling lizard from the age of the dinosaurs, with strange, ridged teeth unlike those of any known reptile. Along with other recent finds ...

Scales or Feathers? It All Comes Down to a Few Genes

Scales, spines, feathers and hair are examples of vertebrate skin appendages, which constitute a remarkably diverse group of micro-organs. Despite their natural multitude of forms, these appendages ...


What Did the Earliest Animals Look Like?

Surprisingly, genome comparisons have failed to resolve a major question in animal evolution: Which living animals are the descendants of the earliest animals to evolve in the world's oceans? ...

Homo Sapiens Likely Arose from Multiple Closely Related Populations

In testing the genetic material of current populations in Africa and comparing against existing fossil evidence of early Homo sapiens populations there, researchers have uncovered a new model of ...

Jaw Shapes of 90 Shark Species Show: Evolution Driven by Habitat

Researchers investigated how the jaw shape of sharks has changed over the course of evolution. Their conclusion: in the most widespread shark species, the jaws show relatively little variation in ...

Butterfly Tree of Life Reveals an Origin in North America

Scientists have discovered where butterflies originated and which plants the first butterflies relied on for food. To reach these conclusions, researchers created the world's largest butterfly ...

Like Ancient Mariners, Ancestors of Prochlorococcus Microbes Rode out to Sea on Exoskeleton Particles

Throughout the ocean, billions upon billions of plant-like microbes make up an invisible floating forest. As they drift, the tiny organisms use sunlight to suck up carbon dioxide from the atmosphere. ...

Human Ancestors Preferred Mosaic Landscapes and High Ecosystem Diversity

A new study finds that early human species adapted to mosaic landscapes and diverse food resources, which would have increased our ancestor's resilience to past shifts in ...

Researcher Uses Mammal DNA to Zoom Into the Human Genome With Unprecedented Resolution

科学家们精确识别的碱基对the human genome that remained consistent over millions of years of mammalian evolution, and which play a crucial role in human disease. The team ...

A Journey to the Origins of Multicellular Life: Long-Term Experimental Evolution in the Lab

Over 3,000 generations of laboratory evolution, researchers watched as their model organism, 'snowflake yeast,' began to adapt as multicellular individuals. In new research, the team shows ...

Nose Shape Gene Inherited from Neanderthals

Humans inherited genetic material from Neanderthals that affects the shape of our noses, finds a new ...

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