Researchers uncovered a variety of features in the genomes of five species of African cichlid fish that enabled them to thrive in new habitats and ecological niches. The findings from these “natural mutants” shed new light on the molecular process of evolution in all vertebrate species.
Research led by a Harvard biologist demonstrated a method for measuring the strength of selection in favor of reproductive isolation.
In the Hunnewell Building is the Arnold Arboretum Horticultural Library, whose books, papers, and photographs ― stored near living collections of many of the same plants they describe ― draw scholars from around the world.
A new study conducted by Harvard scientists shows that in deer mice, a species known to be highly promiscuous, sperm clump together to swim in a more linear fashion, increasing their chances of fertilization.
A new study sheds light on the extent to which animals can make distinctions among scents.
The Gazette spoke with Arboretum officials about the recent arrival of the emerald ash borer.
Using genetic tools to implant genes that produce fluorescent proteins in the DNA of transparent C. elegans worms, Harvard scientists have been able to shed light on neuron-specific “alternative splicing,” a process that allows a single gene to produce many different proteins.
Bauer Fellow Rachel Dutton has identified three general types of microbial communities that live on cheese, opening the door to using each as a “model” community for the study of whether and how various microbes and fungi compete or cooperate as they form communities, as well as what molecules and mechanisms are involved in the process.
The largest-ever phylogenetic spider study shows that, contrary to popular opinion, the two groups of spiders that weave orb-shaped webs do not share a single origin.
A new technique for observing neural activity will allow scientists to stimulate neurons and observe their firing pattern in real time. Tracing those neural pathways can help researchers answer questions about how neural signals propagate, and could one day allow doctors to design individualized treatments for a host of disorders.
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A new theoretical framework outlined by a Harvard scientist could help solve the mystery of how bacterial cells coordinate processes that are critical to cellular division, such as DNA replication, and how bacteria know when to divide.
A team at Harvard Stem Cell Institute recently found that transplanting mesenchymal stem cells along with blood-vessel-forming cells naturally found in circulation improves results. This co-transplantation keeps the mesenchymal stem cells alive longer in mice after engraftment, up to a few weeks compared with hours without co-transplantation.
Harvard Stem Cell Institute scientists collaborating with researchers at the University of Pennsylvania have developed a “genome-editing” approach for permanently reducing cholesterol levels in mice through a single injection, a development with the potential to reduce the risk of heart attacks in humans by 40 to 90 percent.
A team of Harvard researchers has demonstrated that a shared developmental mechanism in songbirds is responsible for generating tremendous variability in their beaks, and is also a control on what kind variation can be produced.
A study from Harvard Medical School provides the first comprehensive description of how cytomegalovirus, or CMV, hijacks human cells and suggests entirely new ways to combat the infection.
A natural hormone that is increased by physical exercise and by exposure to cold improves blood sugar control, suppresses inflammation, and burns fat to mold leaner bodies in mice, report scientists at the Harvard-affiliated Dana-Farber Cancer Institute.
Divinity School graduate Shelley Brown is combining her love for science and religion to help stitch together two fields that rarely seem to meet.
The Harvard Stem Cell Institute is now 10 years old. What began as an idea embracing cross-disciplinary research quickly became a generator of scientific discoveries.
It could be that the key to being a better parent is all in your head, Harvard researchers say.
Harvard scientists have merged stem cell and “organ-on-a-chip” technologies to grow, for the first time, functioning human heart tissue carrying an inherited cardiovascular disease. The research appears to be a big step forward for personalized medicine, because it is working proof that a chunk of tissue containing a patient’s specific genetic disorder can be replicated in the laboratory.