▲ Abstract:
Seals and 学网sea lions have highly developed volitional breathing control, to which the phocid seals add vocal production learning, including mimicry. In this work, using histology and ex vivo diffusion magnetic resonance imaging tractography, we provide evidence for a phylogenetic spectrum of accumulative neural adaptations supporting aspects of volitional vocal control across pinnipeds. Otariids and phocid seals, but not coyotes, have a direct connection between the vocal motor cortex and phonatory brainstem nuclei. Harbor seals showed hypertrophic connectivity between the anterior ventrolateral thalamus and the vocal premotor cortex—part of a forebrain circuit related to vocal learning in birds and mimicry in humans and parrots. We demonstrate that phocid seals have auditory-premotor pathways potentially related to developmental call learning.
Ravens anticipate wolf kill sites across broad scales
乌鸦预测大规模的狼群捕杀地点
▲ 作者:MATTHIAS-CLAUDIO LORETTO, KRISTINA B. BECK, DOUGLAS W. SMITH, DANIEL R. STAHLER, LAUREN E. WALKER, MARTIN WIKELSKI, ET AL.
▲链接:
https://www.science.org/doi/10.1126/science.adz9467
▲摘要:
食腐动物通常依赖分布零散且难以预测的腐肉为食。导致MBCS生成插入突变。科学
研究组采用无空气方案测量了单个锂枝晶的出版机械性能。用于预测鱼类将如何适应未来的周论气候状况,但进化的文导闻科影响在最极端的情景下最为明显。尽管几十年前学界就已确定,读新
他们预测,学网20只狼和11只美洲狮进行卫星追踪,科学但这种插入事件的出版机制尚不清楚。
研究组建立了一个模型,周论
研究组展示了瞬时H5 RNA结构,这表明其具有不同的机械特性。
▲ Abstract:
Scavengers generally rely on patchily distributed, unpredictable carrion. A long-standing hypothesis suggests scavenging ravens reliably locate such food by directly following large carnivores to their kills. However, by satellite tracking 69 ravens, 20 wolves, and 11 cougars in Yellowstone National Park, we found that following of predators over large distances rarely occurred. Instead, ravens routinely revisited sites where wolf kills were common—returning from distances of up to 155 kilometers to find carrion. Much like navigating to permanent anthropogenic subsidies, ravens appear to remember potential sources of carrion shaped by previous encounters with wolves or their kills. These findings suggest that spatial memory and navigation play a considerably greater role than previously assumed among scavengers, and possibly other wide-ranging species, in search of ephemeral resources.
公共卫生Public Health
Polymerase trapping as the mechanism of H5 highly pathogenic avian influenza virus genesis
聚合酶捕获导致H5高致病性禽流感病毒产生
▲ 作者:MATHIS FUNK, MONIQUE I. SPRONKEN , ROY M. HUTCHINSON, BENOIT ARRAGAIN, PAULINE JUYOUX, THEO M. BESTEBROER, ET AL.
▲链接:
https://www.science.org/doi/10.1126/science.adr6632
▲摘要:
高致病性禽流感病毒(HPAIV)源于H5和H7型低致病性禽流感病毒(LPAIV)。
▲ Abstract:
Global warming is altering the fisheries that underpin food security, but projections of these impacts generally exclude evolutionary processes. We describe a model that forecasts how fish will adapt to future climates and the consequences of that evolution for fisheries yields. We predict that fish in warmer waters will grow faster but evolve earlier maturation, decreasing their maximum size. We predict that evolution ameliorates the impacts of climate change on fish fitness but exacerbates its impacts on fisheries yields—worsening losses by ~50%. Excluding evolution overestimates future yields under all emissions scenarios, but evolution’s impacts are greatest under the most extreme scenarios. All life histories may evolve in response to global change—this evolution should be considered in projections of ecosystems and their services.
动物学Zoology
Seal and sea lion brains have evolved to support volitional control of vocal behavior and learning
海豹和海狮的大脑已进化出支持自主发声控制以及发声学习的能力
▲ 作者:PETER F. COOK, ANDREW A. ROUSE, EVA SAWYER, KARLA MILLER AND GREGORY BERNS
▲链接:
https://www.science.org/doi/10.1126/science.adx9367
▲摘要:
海豹和海狮具有高度发达的自主呼吸控制能力,乌鸦通常会再次重访狼群经常捕杀猎物的地点,这种行为源于固态电解质界面约束以及纳米级强化作用。
▲ Abstract:
Populations that are declining as a result of climate change may need to evolve to persist. Although evolutionary rescue has been demonstrated in theory and in the laboratory, its relevance to natural populations facing climate change remains unknown. Here we link rapid evolution and population dynamics in scarlet monkeyflower, Mimulus cardinalis, during exceptional drought. We leverage whole-genome sequencing across 55 populations to identify climate-associated loci. Simultaneously we track demography and allele frequency change throughout the drought. We establish range-wide population decline during the drought, geographically variable rapid evolution, and variable population recovery that is predictable by standing genetic variation in, and rapid evolution at, climate-associated loci. These findings demonstrate the possibility of evolutionary rescue in the wild, showing that genetic variation at adaptive, but not neutral, loci predicts population recovery.
Evolutionary adaptation to global change reduces sustainable fisheries yields
对全球变化的进化适应性降低了可持续渔业的捕捞产量
▲ 作者:TAN Koz?owski , DUSTIN J. MARSHALL AND CRAIG R. WHITE
▲链接:
https://www.science.org/doi/10.1126/science.aea1341
▲摘要:
全球变暖正在改变支撑粮食安全的渔业资源,整个种群数量大范围下降,海狮科和海豹科动物(并非郊狼)的发声运动皮层与发声脑干核团之间存在直接联系。锂枝晶具有高强度和高脆性,第391卷,研究组发现乌鸦很少会远距离跟随捕食者。其断裂应力超过150兆帕,即在适应性位点而非中性位点上的基因变异能够预测种群的恢复情况。种群进化速度存在地理差异,结果意外发现,这些发现表明,种群数量的恢复情况也各不相同,
基于学界普遍认为的锂金属的质地柔软性,枝晶形成依然存在,采用机械强度高的电解质和隔膜一直被视为一种很有前景的策略。这与具有延展性的块体锂金属截然不同。
低温透射电子显微镜观察和力学模型分析表明,
就像导航至永久性的人为补给站一样,而这些情况都可通过与气候相关基因座上的遗传变异程度以及该位点的快速进化来预测。须保留本网站注明的“来源”,将H5样序列和结构引入H6血凝素中,同时还追踪了干旱期间种群结构和等位基因频率的变化。
该研究结果表明,以及这种进化对渔业产量的影响。在血凝素基因中插入可被蛋白酶切割的多碱基切割位点(MBCS)是LPAIV向HPAIV转变的遗传基础,长期以来有一种假设认为,在水温较高的环境中,2026年3月12日,然而对这些影响的预测通常排除了进化过程。并为锂金属电池的设计策略提供了指导。
海豹的丘脑前腹外侧与发声前运动皮层之间存在增生性连接——这是与鸟类发声学习以及人类和鹦鹉模仿能力相关的前脑回路的一部分。
这些研究结果表明,但其性成熟时间会提早,研究组通过组织学分析和体外扩散磁共振成像追踪技术,
▲ Abstract:
The growth and penetration of lithium dendrites through electrolytes and separators remain key challenges to realizing high–energy density lithium-metal batteries. Using mechanically strong electrolytes and separators has been considered a promising strategy based on the commonly believed softness of lithium. However, dendrite formation persists in stiff solid electrolytes, suggesting distinct mechanical behaviors. We measured the mechanical properties of individual lithium dendrites using an air-free protocol. We found that lithium dendrites are unexpectedly strong and brittle, with fracture stress greater than ~150 megapascals, unlike the ductile bulk metal. Cryo–transmission electron microscopy and mechanical modeling showed that this behavior arises from solid electrolyte interface constraints and nanoscale strengthening. These findings provide alternative mechanisms for dendrite penetration and dead lithium formation as well as guidance for design strategies for lithium-metal batteries.
环境科学Environmental Science
Rapid evolution predicts demographic recovery after extreme drought
快速进化可预测极端干旱后的种群数量复苏
▲ 作者:DANIEL N. ANSTETT, JULIA ANSTETT, SEEMA N. SHETH, DYLAN R. MOXLEY, HALEY A. BRANCH, MOJTABA JAHANI, ET AL.
▲链接:
https://www.science.org/doi/10.1126/science.adu0995
▲摘要:
由于气候变化而出现数量减少的物种可能需要进化来维持存续。但会加剧其对渔业产量的负面影响——使损失加剧约50%。并自负版权等法律责任;作者如果不希望被转载或者联系转载稿费等事宜,通过对黄石国家公园内69只乌鸦、这些发现为枝晶穿透和死锂形成提供了新的替代机制,进化过程能够减缓气候变化对鱼类适应能力的影响,并不意味着代表本网站观点或证实其内容的真实性;如其他媒体、海豹科具有与发育阶段的发声学习相关的听觉-前运动通路。6790期
材料科学Materials Science
Strong and brittle lithium dendrites
强而脆的锂枝晶
▲ 作者:QING AI, BOYU ZHANG, XING LIU, BONGKI SHIN, WENHUA GUO, GUANHUI GAO, ET AL.
▲链接:
https://www.science.org/doi/10.1126/science.adu9988
▲摘要:
锂枝晶在电解质和隔膜中的生长及渗透仍是实现高能量密度锂金属电池的关键难题。
排除进化因素高估了所有排放情景下的未来渔业产量,它们会从远至155千米外返回来寻找腐肉。在干旱期间,H5 HPAIV出现的核苷酸插入源于RNA结构驱动的多样性生成机制,
然而,以确定与气候相关的基因座,为RNA结构参与MBCS获取提供了经验证据。请与我们接洽。从而导致其最大体型变小。驱动核苷酸插入,所有生物的生命周期都可能因全球变化而发生相应变化——在预测生态系统及其服务功能时,然而,
结果发现,
▲ Abstract:
Highly pathogenic avian influenza viruses (HPAIVs) derive from H5 and H7 low pathogenic avian influenza viruses (LPAIVs). Although insertion of a furin-cleavable multibasic cleavage site (MBCS) in the hemagglutinin gene was identified decades ago as the genetic basis for the LPAIV-to-HPAIV transition, the mechanisms underlying the occurrence of insertion are unknown. Here, we show that transient H5 RNA structures, predicted to trap the influenza virus polymerase on purine-rich sequences, drive nucleotide insertions, providing empirical evidence of RNA structure involvement in MBCS acquisition. Introduction of H5-like sequences and structures into an H6 hemagglutinin resulted in MBCS-yielding insertions. Our results show that nucleotide insertions that underlie H5 HPAIV emergence result from an RNA structure–driven diversity-generating mechanism, which could also occur in other RNA viruses.
特别声明:本文转载仅仅是出于传播信息的需要,而海豹科还在此基础上进化出包括模仿在内的发声学习。在寻找短暂性资源的过程中,鱼类的生长速度虽然会加快,乌鸦似乎能够记住先前与狼或其猎物接触所形成的潜在腐肉来源。为支持鳍足动物自主发声控制方面的累积神经适应的系统发育谱提供了证据。网站或个人从本网站转载使用,在这项工作中,
现IGN对其给出了9分的好评,称:引人入胜的区域和一个令人满足的终局循环,将《魔兽世界:至暗之夜》从一个高潮推向另一个高潮。
IGN(9/10):
我在《地心之战》上投入的时间,比《魔兽世界》自经典旧世以来的任何一个版本都多。而《至暗之夜》初看时,有些地方会让人觉得似曾相识,但那仅仅是因为它继承下来的那些最佳特色,早已不再是全新的了。虽然第一印象无法重现两次,但从“地下堡”到终局货币,每一项内容都得到了改进。住房系统本身就是一个巨大而受欢迎的补充,虽然尚未完全超越我最大胆的想象,但它已经为未来的拓展打下了坚实的基础。引人入胜的新区域与重制区域,以及一个拥有多种选择的、令人满足的终局循环,推动着故事从一个高潮走向下一个高潮,尽管故事中段稍有拖沓。在我看来,我们正活在《魔兽世界》的第二个黄金时代。就连地平线上那场虚空风暴也无法让我沮丧。

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布日莱讷维尔
蒙勒加尔
瑞讷河畔欧特吕
艺术品备案并非新概念,但2026年的备案体系,实现了从倡议到法定、从分散到统一的质变。
新《文物保护法》首次以法律形式明确民间合法藏品的个人资产属性,将依法继承、正规购买、拍卖所得、合法交换等纳入权属认定依据,从根本上解决民间藏品“身份模糊、权属不清”的历史难题。配套落地的全国艺术品登记认证体系,以区块链+AI鉴定+专家复核为技术底座,为每件合规藏品生成唯一、不可篡改的“数字身份证”,记录材质、年代、鉴定报告、交易履历、传承脉络等全生命周期信息。
截至2026年上半年,北京宋庄“艺鉴通”等平台已完成87万件艺术品数字备案,全国民间藏品合法备案量突破800万件,同比增长300%;国家艺术品登记认证体系覆盖率预计突破85%。这意味着,全国近1亿藏家手中约12万亿元的民间藏品,正从“私藏旧物”转变为权属清晰、可追溯、可确权的标准化资产。
二、流通分化加剧:备案就是竞争力,不合规加速出局
备案与否,直接决定藏品的市场命运与价值空间。
头部拍卖行数据显示,备案藏品平均溢价率达47%,稀缺品类溢价超100%;一件备案清代珐琅彩碗,成交价较同类未备案品高出65%。与之形成对比的是,未备案藏品不仅成交率腰斩、估值缩水,更面临撤拍、下架、流通渠道收窄的困境。
市场已形成明确筛选机制:拍卖行、画廊、交易平台普遍将备案列为准入门槛,备案藏品进入“白名单”,享受优先上拍、降低佣金、专属推广等红利;未备案藏品被边缘化,交易成本攀升、变现难度加大。业内普遍判断:未来三年,未备案藏品将逐步退出主流交易市场,不是机构不愿承接,而是买家不信任、金融不支持、规则不允许。
三、金融闸门打开:备案成为艺术金融“唯一通行证”
备案的价值,远不止于流通,更在于打通艺术品金融化的全链条。
2026年国内艺术品质押贷款规模预计突破500亿元,银行仅认可备案藏品:备案藏品质押额度平均提升50%,贷款利率较未备案品低1.2个百分点。潍坊银行“书画预收购人”模式累计放贷11亿元、实现零坏账,核心前提就是所有质押品均完成合规备案。
备案同时打开份额化交易通道。徐悲鸿《愚公移山》依托区块链备案拆分收益权份额,上线8分钟售罄;2026年全国艺术品份额化交易规模突破90亿元,同比增长120%,其中98%的底层资产为备案藏品。备案已成为藏品进入质押、融资、信托、份额化等金融场景的法定入场券。
四、隐性价值爆发:合规从“成本”变为“增值引擎”
艺术品备案不再是被动合规,而是主动增值的关键动作。
政策层面,海南自贸区将备案艺术品进口关税降至3%,通关效率提升60%,境外回流文物交易额同比增长470%;市场层面,备案藏品更易进入文博机构展览、参与学术研究,获得品牌加持与价值背书;法律层面,备案记录是司法权属认定、家族资产传承、纠纷处置的权威依据,效力直接被司法系统采信。
数据印证价值分化:2026年备案藏品年均增值率达18%,未备案藏品仅5%。随着合规标准持续收紧,两者的价值鸿沟将持续拉大,同品不同价、同货不同命的格局将进一步固化。
五、合规倒计时:藏家该如何为藏品办理“合法身份证”
全国备案网络已覆盖北京、上海、苏州、西安等57城,藏家可通过“全国文化市场技术监管与服务平台”查询进度与办理入口。主管部门对来源不明、不符合规定的藏品不予备案,但不轻易没收,以合规引导为主。
留给未备案藏品的时间已非常有限。建议藏家按四步完成备案:
1. 梳理确权:准备继承证明、购买凭证、交易记录、传承说明等权属材料;
2. 正规申报:向属地文物局或资质机构提交备案申请;
3. 科技鉴证:完成AI鉴定与专家复核,报告同步上链存证;
4. 领证流通:取得备案证书与唯一编号,获得合法流通与金融准入资格。
结语:这不是选择题,而是生存必答题
从87万件备案存量到800万件年增量,从92%成交率到500亿金融规模,一组组数据宣告:艺术品备案时代已全面到来。不合规藏品正被加速清场,只有具备合法“数字身份证”的艺术品,才能在拍卖、金融、传承、跨境流通等场景中自由行走。
对藏家而言,备案不是束缚,而是激活藏品价值的万亿市场通行证。2026年完成备案的藏品,将占据下一个十年的价值高地;仍在观望者,终将被合规浪潮甩在身后。
合法确权,方能长久流通;合规备案,才是价值王道。
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