Current Biology最新文献_第3页

Locomotor kinematics and head stabilization in rolling snakes. 滚动蛇的运动运动学和头部稳定。

IF 7.7 1区生物学

Current Biology Pub Date : 2026-10-19 DOI: 10.1016/j.cub.2026.08.057

Yosuke Kojima, Ibuki Fukuyama, Mohamad Yazid Hossman, Clement Het Kaliang, Kanto Nishikawa

引用次数: 0

Population declines and changes in community composition at the world's largest penguin colony. 世界上最大的企鹅聚居地的人口下降和群落组成的变化。

IF 7.7 1区生物学

Current Biology Pub Date : 2026-10-19 Epub Date: 2026-10-07 DOI: 10.1016/j.cub.2026.09.010

Norman Ratcliffe, John Dickens, Gemma Clucas, Klemens Pütz, Nathan Fenney, Elizabeth Mackley, Tom Hart, Laure Cugniere, Claudia Colesie, Nicole Richter, Mark Belchier, Aliaksandra Skachkova, Heather Lynch, Peter Convey, Peter Fretwell

{"title":"Population declines and changes in community composition at the world's largest penguin colony.","authors":"Norman Ratcliffe, John Dickens, Gemma Clucas, Klemens Pütz, Nathan Fenney, Elizabeth Mackley, Tom Hart, Laure Cugniere, Claudia Colesie, Nicole Richter, Mark Belchier, Aliaksandra Skachkova, Heather Lynch, Peter Convey, Peter Fretwell","doi":"10.1016/j.cub.2026.09.010","DOIUrl":"10.1016/j.cub.2026.09.010","url":null,"abstract":"The Antarctic Peninsula and Scotia Sea are experiencing the greatest pressures from climate change and fisheries in the Southern Ocean, with associated penguin population declines. However, surveys of the South Sandwich Islands in 2011 concluded that numbers there were stable. Zavodovski, the northernmost island in the archipelago, was then hailed as the largest penguin colony in the world. We show that, by 2025, rapid declines of maritime Antarctic chinstrap penguins mean this title has now been ceded to the Adélie penguin colony at Cape Adare, Ross Sea. Over the same period, the subantarctic macaroni penguins increased to become the most abundant species on Zavodovski, representing the largest community shift in Antarctic penguins that has been recorded at a single site. We infer that the most likely primary cause of the chinstrap decline was a reduction in krill availability associated with regional warming, as found across the rest of the Scotia Sea, rather than the volcanic eruption of Zavodovski in 2016 or competition from krill fisheries, macaroni penguins, or humpback whales. The declines of chinstrap penguins mean that reclassification of their global IUCN threat status, from Least Concern to Endangered, requires consideration.","PeriodicalId":11359,"journal":{"name":"Current Biology","volume":" ","pages":"5357-5364.e3"},"PeriodicalIF":7.7,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149126859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Anthropogenic novel entities in the Earth system. 地球系统中人为的新实体。

IF 7.7 1区生物学

Current Biology Pub Date : 2026-10-19 DOI: 10.1016/j.cub.2026.02.018

Lauren Zink, Elvis Genbo Xu, Susanne M Brander, Alison Bain, Bethanie Carney Almroth, Michael G Bertram

引用次数: 0

Depression: Ketamine quiets an unruly habenula. 抑郁症：氯胺酮使不听话的缰核安静下来。

IF 7.7 1区生物学

Current Biology Pub Date : 2026-10-19 DOI: 10.1016/j.cub.2026.09.027

John H Krystal

引用次数: 0

Mitotic shape changes drive spatiotemporally segregated cell-contact rearrangements in a proliferating epithelium. 在增殖上皮中，有丝分裂形状的改变驱动时空分离的细胞接触重排。

IF 7.7 1区生物学

Current Biology Pub Date : 2026-10-19 Epub Date: 2026-09-30 DOI: 10.1016/j.cub.2026.09.012

Subramanian P Ramanathan, Tanmoy Sarkar, Matej Krajnc, Rosemary Mwithiga, Azize Cerci, Chongbei Zhao, Matthew C Gibson

{"title":"Mitotic shape changes drive spatiotemporally segregated cell-contact rearrangements in a proliferating epithelium.","authors":"Subramanian P Ramanathan, Tanmoy Sarkar, Matej Krajnc, Rosemary Mwithiga, Azize Cerci, Chongbei Zhao, Matthew C Gibson","doi":"10.1016/j.cub.2026.09.012","DOIUrl":"10.1016/j.cub.2026.09.012","url":null,"abstract":"In animals, epithelial tissue morphology is determined by the shape, position, and number of its component cells. Nevertheless, it remains incompletely understood how the shape transformations that accompany epithelial mitosis influence tissue packing. Combining an in silico vertex model with live imaging of murine intestinal organoids, we show that mitotic shape changes drive a spatiotemporally segregated sequence of cell-contact rearrangements: basal diminution of mitotic cells, transient multicellular rosette assembly, and reinsertion of the daughter cells. Strikingly, the reinsertion is accompanied by neighbor exchanges oriented perpendicular to the daughter-daughter contact in silico and in organoids, which indicates that reinsertion geometry is sufficient to set the direction of rearrangement. Pharmacological arrest of mitotic progression reveals that basal diminution and daughter reinsertion independently drive distinct contact rearrangements. Together, our results establish that two distinct geometric asymmetries of mitosis, the apico-basal diminution of the dividing cell and the in-plane anisotropy of daughter reinsertion, drive a program of cell rearrangement that reorganizes basal cell-contact topology, thus providing an intrinsic route by which proliferating epithelia accommodate new cells.","PeriodicalId":11359,"journal":{"name":"Current Biology","volume":" ","pages":"5345-5356.e4"},"PeriodicalIF":7.7,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13627909/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149105711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Neuroimmune signaling: Dopamine release from fat tissue mediates pathogen avoidance. 神经免疫信号：脂肪组织释放多巴胺介导病原体回避。

IF 7.7 1区生物学

Current Biology Pub Date : 2026-10-19 DOI: 10.1016/j.cub.2026.08.049

Nilay Yapici

引用次数: 0

Chunking: What working memory gains and loses. 分块记忆：工作记忆的得失。

IF 7.7 1区生物学

Current Biology Pub Date : 2026-10-19 DOI: 10.1016/j.cub.2026.09.028

Yang Xie, He Zhang, Liping Wang

引用次数: 0

Cambrian fossils illuminate the ambulacrarian common ancestor. 寒武纪化石阐明了爬行动物的共同祖先。

IF 7.7 1区生物学

Current Biology Pub Date : 2026-10-19 Epub Date: 2026-09-16 DOI: 10.1016/j.cub.2026.08.053

Kaiyue He, Giovanni Mussini, Jian Han, Mike Reich, Qiang Ou, Meirong Cheng, Degan Shu

{"title":"Cambrian fossils illuminate the ambulacrarian common ancestor.","authors":"Kaiyue He, Giovanni Mussini, Jian Han, Mike Reich, Qiang Ou, Meirong Cheng, Degan Shu","doi":"10.1016/j.cub.2026.08.053","DOIUrl":"10.1016/j.cub.2026.08.053","url":null,"abstract":"The origins of ambulacrarians, which comprise the morphologically disparate echinoderms (sea stars and their relatives) and the worm-like hemichordates, are poorly constrained, obscuring the assembly of their exceptionally disparate body plans. We describe Yujingia glutenotunica, an ambulacrarian from the early Cambrian Chengjiang biota (518 Ma). Yujingia combines a simple cylindrical body plan with a crown of specialized appendages, including pinnate arms bearing filter-feeding grooves and alternating side-branches. Phylogenetic analyses recover Yujingia within a grade of tentaculate fossils immediately basal to the last common ancestor of all modern ambulacrarians. These results suggest that ambulacrarians evolved from semi-sessile organisms with complex suspension-feeding adaptations, otherwise only found in crown-group echinoderms and tentaculate hemichordates (pterobranchs). Yujingia fills a key gap in the early deuterostome fossil record, thus challenging the conventional worm-like, pharyngeal filter-feeder models for the ambulacrarian last common ancestor and supporting unexpectedly deep origins for the echinoderm and pterobranch body plans.","PeriodicalId":11359,"journal":{"name":"Current Biology","volume":" ","pages":"5180-5190.e2"},"PeriodicalIF":7.7,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148982319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Plant evolution: How duckweeds became so small. 植物进化：浮萍如何变得如此之小。

IF 7.7 1区生物学

Current Biology Pub Date : 2026-10-19 DOI: 10.1016/j.cub.2026.09.001

Cristian Mateo-Elizalde, Evan Ernst, Rob Martienssen

引用次数: 0

Navigation map has to be learned by migration-naïve Eurasian reed warblers. 导航地图必须由migration-naïve欧亚苇莺学习。

IF 7.7 1区生物学

Current Biology Pub Date : 2026-10-19 DOI: 10.1016/j.cub.2026.08.027

Gleb Utvenko, Polina Gorvat, Anna Akhapkina, Aleksandr Pakhomov, Nikita Chernetsov

{"title":"Navigation map has to be learned by migration-naïve Eurasian reed warblers.","authors":"Gleb Utvenko, Polina Gorvat, Anna Akhapkina, Aleksandr Pakhomov, Nikita Chernetsov","doi":"10.1016/j.cub.2026.08.027","DOIUrl":"https://doi.org/10.1016/j.cub.2026.08.027","url":null,"abstract":"It used to be thought that young migrating birds perform their first migration using an innate 'clock-and-compass' programme that specifies the timing of onset of movement and its direction and duration, but did not require information about the bird's current position1. In classic displacement experiments, young birds continued to fly in their normal migratory direction, whereas adults were able to adjust their course after displacement2. More recent evidence, however, suggests that young birds may estimate their position and adjust their behaviour when delayed or displaced, even during their maiden flight3,4. Evidence for innate magnetic map responses in hatchling sea turtles and juvenile salmonids5 suggests that birds may also inherit magnetic positional information. We have investigated this hypothesis in the Eurasian reed warbler (Acrocephalus scirpaceus), a species in which compensation for physical and virtual magnetic displacement has been demonstrated in experienced migrants6,7. We used migration-naïve birds trapped in early autumn as juveniles and kept in captivity over winter. In spring, the birds were tested first in the natural magnetic field at Rybachy in Russia, and then under a virtual magnetic displacement to Keele, UK. Under the virtual magnetic displacement, the birds did not change their orientation as expected if they possessed a magnetic map. We found no evidence that migration-naïve Eurasian reed warblers use a functional innate magnetic map under the conditions of our experiment. In this species, the first migration is guided primarily by an inherited compass programme, whereas a functional magnetic map develops through migratory experience.","PeriodicalId":11359,"journal":{"name":"Current Biology","volume":"36 20","pages":"R1063-R1065"},"PeriodicalIF":7.7,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149223620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0