Corinne N. Simonti

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2 weeks ago | science.org | Corinne N. Simonti |Jesse R. Smith |Peter Stern |Yevgeniya Nusinovich

Neuroscience You see what you expectPeter SternFeedback from higher-level visual processing centers in the brain influences the early stages of object recognition. PHOTO: EYEEM MOBILE GMBH/ISTOCK PHOTOVisual recognition is thought to start with basic object features in the primary visual cortex, reaching the level of object representation at higher cortical areas after processing. However, there is increasing evidence for top-down influences in these pathways. Altavini et al.
In Science Journals

Feb 6, 2025 | science.org | Shixin Ma |Léa Meneu |Hongbo Liu |Ian S. Osborne |Michael Funk |Madeleine Seale | +11 more

Topological Optics Viewing topology in higher dimensionsIan S. OsborneArtistic depiction of a four-dimensional regular lattice that forms a quasicrystalline pattern with fivefold symmetry when projected in two dimensions. The symmetry and topology of physical systems are closely related to the symmetries governing the topological properties. Quasicrystals are ordered systems but have no translation or rotational symmetries.
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Jan 9, 2025 | science.org | Harrison J. Ostridge |Arindam Ghosh |Anqi Wei |Corinne N. Simonti

Avian Genetics Yellow winsCorinne SimontiEnzymes underlying the distinctive red beaks in some Australian finches are under selection in wild populations. PHOTO: PHIL DEGGINGER/SCIENCE SOURCEMany birds use carotenoids from their diet to create yellow and red pigmentation. Most such carotenoids are yellow, because red requires enzymes to produce. Although this pathway has been explored in laboratory mutants, these enzymes have been relatively understudied in natural populations. Hooper et al.
In Science Journals

Jan 2, 2025 | science.org | Michael Funk |Jesse R. Smith |Phil Szuromi |Sacha Vignieri |Jake Yeston |Mattia Maroso | +8 more
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Jan 2, 2025 | science.org | Corinne N. Simonti |Jesse R. Smith |Di Jiang |Bianca Lopez |Sarah Ross |Jelena Stajic | +2 more

Deep-Sea Life A bizarre sea slug in the deepDi JiangDeep-sea biodiversity and the ecological adaptations of life are less explored in the bathypelagic zone than in other oceanic zones. Robison and Haddock describe Bathydevius caudactylus, a new nudibranch (sea slug) species that is found at depths of 1013 to 4009 meters in the eastern North Pacific Ocean.
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Dec 19, 2024 | science.org | Corinne N. Simonti |Jesse R. Smith |Sacha Vignieri |Jake Yeston |Sumin Jin |Brad Wible | +3 more

Cognition With intentionSacha VignieriOnce thought to be unique to humans, tool use has now been documented across animals, from mammals to birds and even fish and insects. Thus, it should be no surprise that the elephant, a cognitively advanced mammal, would readily make use of a new tool, as documented by Urban et al. Even more interesting was the disruption of one animal’s use of a hose to shower by another, in an apparent act of intentional disruption.
In Science Journals

Dec 5, 2024 | science.org | Milos S. Simic |Nishith Reddy |Nicholas Dulvy |Corinne N. Simonti

Pigmentation A microRNA controls wing pigmentationCorinne SimontiA microRNA is responsible for a common color variation pattern in butterflies. Wing coloration patterns have been widely studied across butterflies and moths, with the gene cortex often being implicated as a recurrent target of selection. However, molecular studies disrupting cortex have had inconsistent results. Tian et al.
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Nov 7, 2024 | science.org | Gordon Rix |Julia Phan |Carsen Stringer |Corinne N. Simonti

Conservation Looking beyond zoosCorinne SimontiPrivately owned tigers show levels of genetic diversity similar to those of wild tigers, suggesting their potential use in conservation. PHOTO: TIERFOTOAGENTUR/ALAMY STOCK PHOTOTigers, which include six subspecies, some of which are extinct in the wild, have experienced severe population declines in recent years.
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Sep 19, 2024 | science.org | Caroline Ash |Ankit Walia |Corinne N. Simonti |Brent Grocholski

Virology Cold diversity hotspotsCaroline AshAntarctic giant viruses such as those found in the waters off Greenwich Island are now at risk due to climate change. PHOTO: TRAVEL FOTOWORLD/GETTYIMAGESGiant viruses are important components of marine food webs. Their hosts span a range of eukaryotic organisms, and they associate with the collapse of algal blooms. Using genome-resolved metagenomics, Buscaglia et al.
In Science Journals

Sep 19, 2024 | science.org | Corinne N. Simonti |Jake Yeston |Christiana N. Fogg |Jesse R. Smith

Lizard Genetics Dosage compensation in the anoleCorinne SimontiMale green anoles use a long noncoding RNA to maintain the right amount of gene expression from their single X chromosome. PHOTO: FABIENNE LAWRENCE/GETTYIMAGESDosage compensation of sex chromosomes can be mediated either by overexpressing genes in the heterogametic sex or by silencing one copy in the homogametic.