ADVERTISEMENT
snake eating another snake
Male Snakes Cannibalizing Females Present Evolutionary Puzzle
The Scientist speaks with organismal biologist Xavier Glaudas about possible reasons for his recent finding that male Montpellier snakes cannibalize female conspecifics.
Male Snakes Cannibalizing Females Present Evolutionary Puzzle
Male Snakes Cannibalizing Females Present Evolutionary Puzzle

The Scientist speaks with organismal biologist Xavier Glaudas about possible reasons for his recent finding that male Montpellier snakes cannibalize female conspecifics.

The Scientist speaks with organismal biologist Xavier Glaudas about possible reasons for his recent finding that male Montpellier snakes cannibalize female conspecifics.

evolutionary biology, evolution

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.
silhouette of a chimpanzee swinging against a blue sky
Alu Leap May Explain Why Apes Don’t Have Tails
Annie Melchor | Sep 23, 2021 | 2 min read
A transposable element that jumped into the TBXT gene, which is linked to tail morphology, appears to be to blame for our missing appendage.
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.
Illustration of humans and mice and their gut microbiota
Infographic: Microbiome-Driven Adaptations in Animals
Catherine Offord | Jul 1, 2021 | 2 min read
Researchers are using experiments and observational studies to look for host genetic variation that could be partly determined by the gut microbiota.
An illustration of green bacteria floating above neutral-colored intestinal villi
The Inside Guide: The Gut Microbiome’s Role in Host Evolution
Catherine Offord | Jul 1, 2021 | 10+ min read
Bacteria that live in the digestive tracts of animals may influence the adaptive trajectories of their hosts.
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 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.
Infographic: Animals of Different Species Hybridize
Ashley Yeager | May 1, 2021 | 2 min read
The offspring of crosses between related species can sometimes fill a new environmental niche, and such hybridizations may even lead to speciation.
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.
Free Fallin’: How Scientists Study Unrestrained Insects
Amanda Heidt | Mar 1, 2021 | 10+ min read
Researchers are pulling from video games, sports broadcasting, meteorology, and even missile guidance technology to better investigate how insects have mastered flight.
Infographic: VR, Radar, and Other Tricks for Studying Insects
Amanda Heidt | Mar 1, 2021 | 1 min read
Researchers are getting creative to understand flight behavior in the fast-moving and tiny animals.
Questions Raised About How an Ancient Hominin Moved
Abby Olena, PhD | Feb 24, 2021 | 4 min read
A new analysis of the hand of the 4.4-million-year-old partial skeleton of Ardipithecus ramidus indicates that the human ancestor may have climbed and swung through trees like chimpanzees do.
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.
Contributors
The Scientist | Jun 1, 2020 | 3 min read
Meet some of the people featured in the June 2020 issue of The Scientist.
ADVERTISEMENT