搜索结果: 1-15 共查到“国际动态 水生生物学”相关记录89条 . 查询时间(0.664 秒)
齿鲸更年期演化有助“增寿”
虎鲸 白鲸 雌性
2024/3/18
英国科学家研究发现，齿鲸（如虎鲸、白鲸和一角鲸）之所以演化出更年期可能是为了增加总体寿命。更年期的演化使雌性能够帮助后辈生存，但不会与女儿或孙女竞争配偶。相关研究近日发表于《自然》。
深海深渊里有道生物“分隔带”（图）
分隔带 深海生物体 碳酸盐
2023/8/3
英国科学家报道了海面下超过4000米的一个特殊过渡区，这个过渡区将深海生物体按照不同体型隔开。带壳动物被发现大量生活在这个过渡带上方，而软体动物则主要占据了深渊深处。相关研究近日发表于《自然—生态与演化》。
栉水母可能是最古老的动物群体（图）
栉水母 动物群体 美国加州大学
2023/6/19
奥地利维也纳大学和美国加州大学伯克利分校的研究团队发现，在古老的动物中，栉水母而非海绵，才是所有其它动物的远古“亲戚”。也就是说，栉水母是第一批动物的近亲，人类也是从这些动物中产生的。
Seafaring drones on Lake Superior will soon allow a team of Cornell scientists to examine fresh details about the abundance and distribution of forage fish – species, such as zooplankton and shrimp, w...
埃及发现4300万年前半水生鲸鱼化石
鲸鱼化石 埃及 古鲸类化石
2022/1/27
据埃及中东通讯社及金字塔在线网站25日报道，埃及环境部长亚丝明·福阿德当天宣布，埃及相关团队在法尤姆省发现一种生活在4300万年前的半水生鲸鱼化石。
神秘痕迹显示北极海绵正在移动（图）
神秘痕迹 北极海绵 正在移动
2021/4/28
海绵虽然是一种水生动物，但人们通常认为它们是完全固着的：一旦在一个地方定居并成熟，它们不会再移动。但是，4月26日发表在《当代生物学》上的一项新研究显示，情况并不总是如此。研究人员描述了横跨北极海底的浅棕色海绵针状神秘痕迹（海绵中的针状支撑物）。“我们观察到紧密交织的针状痕迹直接连接到海绵个体的下侧，表明这些痕迹是海绵的活动痕迹。”研究人员说，“这是首次在现场观察到大量的海绵移动痕迹。”该研究由德...
Scientists discover how cyanobacteria thrive in low light（图）
Scientists cyanobacteria low light
2020/2/20
Scientists have determined the structure of the protein complex that gives cyanobacteria their unique ability to convert weak, filtered sunlight into useable energy. The National Science Foundation-fu...
Identity of mystery Florida invader corrected after 20 years（图）
Identity mystery Florida invader corrected 20 years
2020/1/19
Sometimes scientists make mistakes. A case in point is the chanchita, a South American non-native freshwater fish that has been swimming in Florida's waters for at least two decades, all the while mis...
Ultra-fast communication allows aquatic cells to release toxins in unison（图）
Ultra-fast communication aquatic cells release toxins
2019/10/23
Crouching in the boot-sucking mud of the Baylands Nature Preserve in Palo Alto, bioengineer Manu Prakash of Stanford University peered through his Foldscope -- a $1.75 origami microscope of his own in...
澳科研人员发现致命水母毒液“解药”
CRISPR基因组 箱形水母 澳大利亚
2022/3/1
澳大利亚科研人员日前报告说，他们利用基因组筛查的方法发现，一种已有药物可阻止被具有致命毒性的澳大利亚箱形水母蜇伤后出现的部分症状。
Mantis Shrimp Size Each Other Up Before Ceding A Fight（图）
Mantis Shrimp Size Each Other Before Ceding A Fight
2018/2/1
To a mantis shrimp, walking away from a fight doesn’t mean being a wimp. It means recognizing who they’re up against and knowing when to bail rather than drag out a doomed battle, Duke University rese...
Smart boxers bind their hands with strips of cloth to avoid injury when they pack a punch. Millions of years ago, the “smasher” mantis shrimp, one of nature’s feistiest predators, figured out a simila...
Penn-Led Team Uncovers The Physiology Behind The Hour-Long Mating Call Of Midshipman Fish（图）
Penn-Led Team Physiology The Hour-Long Mating Call Midshipman Fish
2018/2/1
According to the Guinness World Records, the longest any person has held a continuous vocal note is just shy of two minutes. That’s quite an achievement.
Compared to the Pacific midshipman fish, howe...
Can Environmental Toxins Disrupt the Biological “Clock”?（图）
Environmental Toxins Disrupt the Biological Clock
2017/11/23
Can environmental toxins disrupt circadian rhythms – the biological “clock” whose disturbance is linked to chronic inflammation and a host of human disorders? Research showing a link between circadian...
Scientists name new species of fish from the Orinoco region after singer Enya
Scientists name fish the Orinoco region singer Enya
2017/7/24
In 1988, Irish singer and songwriter Enya released a lead single titled “Orinoco Flow” from her second studio album, which went on to become an international hit, earn a Grammy Award nomination, and h...