Nature Physics - Zebrafish can regenerate amputated fins back to their original size. It is now shown that gradients in extracellular signal-regulated kinase activity act as rulers during fin bone...

The House Committee on Science, Space and Technology

Regeneration restores a damaged body part to its original size, shape and structure. Research over the last decades identified signaling pathways, cel…

Our grants support and encourage the sharing of knowledge throughout the community by facilitating international collaboration, event attendance and the organisation of scientific meetings, conference...

Workers at the drinking water plant in Louisville, Ky. saw a sudden spike in the level of a 'forever chemical.' They traced it up the Ohio River to a factory embroiled in a pollution lawsuit.

In a new publication led by the Friedrich group at PoL and the Sandoval-Guzmán group at CRTD, scientists propose a model of morphogen scaling during limb regeneration in axolotls.

A study on the fruit fly gut led by Flatiron Institute researchers gives insight into how tissues are shaped by bumping into their neighbors.

Nature Reviews Molecular Cell Biology, Published online: 11 November 2025; doi:10.1038/s41580-025-00917-1The ability to track single cells in vivo, combined with insights into chromatin structure, immune–tissue crosstalk, bioelectric and metabolic cues and quantitative modelling, is changing our understanding of how tissues are repaired and renewed. This Review discusses how signals are regulated during regeneration and future directions for a more quantitative understanding of regenerative biology.

October 2, 2025 We have received reports that Penn has been “invited” to sign a so-called “Compact for Academic Excellence in Higher Education” by the federal government, and that failing to do so wou...

Growing up in West Virginia, I was fascinated by the science in nature surrounding me — the deer quietly disappearing into the forest’s edge, the blinking lightning bugs dotting my backyard, the expos...

Zebrafish are cool. They’re just one of a handful of animals that can regenerate their brain, spine, and even heart after injury. Unsurprisingly, a lot can be learned from studying how these injured o...

For cells to polarize collectively along a tissue plane, asymmetrically localized planar cell polarity (PCP) complexes must form intercellular contacts between neighboring cells. Yet, it is unknown wh...

National Institutes of Health grants generated almost $95 billion in economic activity nationwide in FY 2024 according to a new report by United for Medical Research.

Scientists rally across the country in response to layoffs and funding cuts ordered by the Trump administration

Administration officials pressured NIH to avoid clear advice from the agency’s own lawyers to restart grant funding now.