evolutionary biology
The Weird Growth Strategy of Earth’s First Trees
The Weird Growth Strategy of Earth’s First Trees
Shawna Williams | Oct 24, 2017
Ancient fossils reveal how woodless trees got so big: by continuously ripping apart their xylem and knitting it back together.
Contributors
Contributors
Aggie Mika | Oct 1, 2017
Meet some of the people featured in the October 2017 issue of The Scientist.
Do Pathogens Gain Virulence as Hosts Become More Resistant?
Do Pathogens Gain Virulence as Hosts Become More Resistant?
Andrew F. Read and Peter J. Kerr | Oct 1, 2017
Emerging infections provide clues about how pathogens might evolve when farm animals are protected from infection.
Infographic: Evolving Virulence
Infographic: Evolving Virulence
Andrew F. Read and Peter J. Kerr | Sep 30, 2017
Tracking the myxoma virus in the wild rabbit populations of Australia has yielded insight into how pathogens and their hosts evolve.
How Immune Receptors Got into Mouse Noses
How Immune Receptors Got into Mouse Noses
Shawna Williams | Sep 1, 2017
A study traces proteins’ evolution from the immune to the olfactory system.
Pollution Drives Marine Reptile Color Change
Pollution Drives Marine Reptile Color Change
Bob Grant | Aug 11, 2017
The turtle-headed sea snake is losing its stripes, and researchers suggest that the change reflects adaptation to fouled oceans.
Islands North of Antarctica Key to Fish Species Diversity
Islands North of Antarctica Key to Fish Species Diversity
Shawna Williams | Jul 24, 2017
Their waters served as refuges during ice ages, allowing for adaptation and the emergence of new species.
Lords of the Flies
Lords of the Flies
Aggie Mika | Jun 19, 2017
Biologists’ walk in the woods sparks the creation of a masterful fruit fly field guide. 
Mammalian Jaws Evolved to Chew Sideways
Mammalian Jaws Evolved to Chew Sideways
Catherine Offord | Jun 1, 2017
Parallel evolution in jaws and teeth helped early mammals diversify their diets.
Study: Fishing Induces Gene Expression Changes
Study: Fishing Induces Gene Expression Changes
Jef Akst | May 18, 2017
Harvesting lab-raised zebrafish based on their size led to differences in the activity of more than 4,000 genes, as well as changes in allele frequencies of those genes, in the fish that remained.