Population swings in eastern North Pacific grey whales—some of which have resulted in recent mass mortality events—are driven by changing prey biomass and ice cover in the Arctic, a new Science study finds.

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In a new Science study, researchers discovered that the hormonal milieu of pregnancy remodels a distinct population of hypothalamic neurons in mice that mediates the onset of parental behavior before giving birth.

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How do neutrophils decide on their destinations?

Researchers detail a mechanism that determines how these immune cells “triage” their responses to chemical cues elicited by infection, injury, or inflammation. @SciSignal scim.ag/4rg

In a new “page-turning memoir,” Katalin Kariko, a 2023 #NobelPrize winner, documents how her passion for #mRNA paid off.

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This fossil was a remarkable twofer: a dinosaur jaw plus an insect trapped in amber, all in one 75 million-year-old find. #NationalFossilDay scim.ag/4r1 News from Science

New research in mice reveals one T cell subset behind the progression of metabolic-associated fatty liver disease to non-alcoholic steatohepatitis (NASH)—a widespread and damaging liver condition accompanied by inflammation and fibrosis. scim.ag/4qZ Science Immunology

New, independent ages have confirmed the controversial antiquity of ancient human footprints discovered in White Sands National Park, showing that humans were present in North America during the Last Glacial Maximum.

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In @SciSignal, experiments involving fluorescent reporter T cells shed new light on the function of LAG3, an immune-suppressing receptor that has emerged as a promising target in cancer #immunotherapy . scim.ag/4qL

To address #ClimateChange , attention should be rebalanced from global target setting toward national climate politics and policy, argues Navroz Dubash in a new #ScienceExpertVoices article. scim.ag/4qB

Bioprinted #SkinGrafts could offer a promising alternative to autologous skin grafting, according to new experiments involving large animals.

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Scientists have just gotten an unprecedented—and unexpected—glimpse at the inner workings of Tasmanian tigers, marsupial predators that went extinct in the early 20th century. scim.ag/4ql News from Science