Hyoungjun Ham

Sep 19, 2024 | science.org | Hyoungjun Ham |Emily Judd

The current extent of the Arctic ice cap is shown. The polar regions were ice-free for much of Earth’s history. What was Earth’s temperature tens to hundreds of millions of years ago? The planet has gone through different periods, some with extensive polar ice caps and others being completely ice-free. Estimating past global temperature is important for understanding the history of life on Earth, for predicting future climate, and more broadly, to inform the search for other habitable planets.

Sep 19, 2024 | science.org | Hyoungjun Ham |Emily Judd |Caroline Ash |Bianca Lopez

Introduction to Special IssueCaroline Ash, Bianca Lopez, [...] , Sacha Vignieri, and Brad Wible+1 authors fewerAuthors Info & AffiliationsBrown rats (Rattus norvegicus) live essentially everywhere that humans reside. Surprisingly little is known about their original habitat or ecology and evolution in the wild. PHOTO: CHARLIE HAMILTON JAMESThanks to humans, house mice and brown and black rats are now some of the few species on the planet that can be found almost everywhere.

Feb 12, 2024 | nature.com | Ann Park |Justin Q. Gabrielski |Hyoungjun Ham |Jean Michel Chanchu |Aaron R. Morawski |Aiman J. Faruqi | +14 more

Correction to: Nature Immunology https://doi.org/10.1038/s41590-023-01691-y, published online 3 January 2024. In the version of the article initially published, Buket Dalgıç (Department of Pediatric Gastroenterology, Gazi University Faculty of Medicine, Ankara, Turkey) was mistakenly omitted from the author list and has now been added in the HTML and PDF versions of the article. About this articlePark, A.Y., Leney-Greene, M., Lynberg, M. et al.

Jan 3, 2024 | nature.com | Ann Park |Aiman J. Faruqi |Samuel D. Chauvin |Holden T Maecker |Altan Kara |Odile Filhol | +14 more

AbstractPreserving cells in a functional, non-senescent state is a major goal for extending human healthspans. Model organisms reveal that longevity and senescence are genetically controlled, but how genes control longevity in different mammalian tissues is unknown.