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tag stress developmental biology evolution

Cellular DNA and epigenetics
Do Epigenetic Changes Influence Evolution?
Katarina Zimmer | Nov 1, 2022 | 10+ min read
Evidence is mounting that epigenetic marks on DNA can influence future generations in a variety of ways. But how such phenomena might affect large-scale evolutionary processes is hotly debated.
3d rendered medically accurate illustration of a human embryo anatomy
The Ephemeral Life of the Placenta
Danielle Gerhard, PhD | Dec 4, 2023 | 10+ min read
Recent advances in modeling the human placenta, the least understood organ, may inform placental disorders like preeclampsia.
a trio of infant mice, two brown mice on the ends and one white mouse in the middle
Mice Pass Epigenetic Tweaks to Pups
Katherine Irving | Feb 17, 2023 | 5 min read
An engineered methylation pattern persisted for four generations of mice, demonstrating transgenerational epigenetic inheritance can occur in mammals.
Short Shrift to Evolution?
Barry Palevitz and Ricki Lewis | Feb 1, 1999 | 7 min read
Editor's Note: In this essay, the authors--both scientists and writers--discuss recent news stories on evolution and express their opinions on how the stories were handled by the mainstream press. Evolution took center stage at the National Association of Biology Teachers (NABT) annual meeting in Reno, Nev., Nov. 3-8, 1998. If the teachers needed a theme, evolution was a logical choice--after all, it underlies and unifies contemporary biology. But NABT had other fish to fry. Despite a spate of c
On the left is a normally developing mouse embryo, on the right is a slightly larger mouse embryo that also contains horse cells that glow green.
Chimera research opens new doors to understanding and treating disease
Hannah Thomasy, PhD, Drug Discovery News | Aug 9, 2023 | 10 min read
Animals with human cells could provide donor organs or help us understand neuropsychiatric disorders.
Microbial Co-op in Evolution
Eugene Russo | Oct 5, 2003 | 7 min read
Courtesy of Michiel Vos, Max Planck Institute, Tübingen, Germany  FRUIT FOR THE HUNGRY: Myxococcus fruiting bodies emerge from soil particles in response to starvation. Approximately 100,000 cells aggregate and communicate via chemical signals to form the bodies, and a portion of the population differentiates into stress-resistant spores. Most microbiologists consider used flasks, laden with splotches of colonizing bacteria, simply more dishes to wash. Paul Rainey sees more. For Rai
What a tangled web we weave
Barbara Oakley | Apr 9, 2009 | 3 min read
Understanding unethical behavior through genetics, biology and evolution
Close up photo of a wing
Unearthing the Evolutionary Origins of Insect Wings
Jef Akst | Apr 4, 2022 | 6 min read
A handful of new studies moves the needle toward a consensus on the long-disputed question of whether insect wings evolved from legs or from the body wall, but the devil is in the details.
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.
A pair of zebra finches in a cage
Animal Divorce: When and Why Pairs Break Up
Catherine Offord | Jun 1, 2022 | 10+ min read
Many species of birds and other vertebrates form pair bonds and mate with just one other individual for much of their lives. But the unions don’t always work out. Scientists want to know the underlying factors.

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