搜索结果: 181-195 共查到“国际动态 动物学”相关记录1160条 . 查询时间(2.797 秒)
俄罗斯发现蝴蝶新物种：具有46条染色体（图）
染色体 细胞遗传学 蝴蝶新物种 蝴蝶生态学
2022/2/17
据国外媒体报道，俄罗斯科学家对一种常见蝴蝶的种群进行分析之后发现，它们原来属于一个全新的物种，而且拥有非常特别的基因组构成。
Whither The Slither?
Whither Slither Snakes
2018/2/1
Snakes are known for their iconic S-shaped movements. But they have a less noticeable skill that gives them a unique superpower.Snakes can crawl in a straight line.University of Cincinnati biologist B...
亚马逊杂交鸟类因地理隔绝成独特物种
亚马逊 杂交鸟 猫眼石冠侏儒鸟 雪白冠
2022/3/28
加拿大多伦多大学的科学家在对亚马逊热带雨林发现的迄今已知的第一种杂交鸟类——金冠侏儒鸟进行深入分析后发现，地理隔绝让其进化成独特物种，拥有独特属性。
Scholars and conservationists want to aim for the right future to preserve biodiversity and plan sustainable environments. One of those scholars is calling for due diligence to make sure the right dat...
Indiana University biologists create beetle with functional extra eye（图）
Indiana University biologists beetle functional extra eye
2017/11/24
On "Game of Thrones," a three-eyed raven holds the secrets of the past, present and future in a vast fantasy kingdom. But for real-world biologists, a "three-eyed beetle" may offer a true glimpse into...
Virginia Tech researchers explore causes of land cover change in African savannas（图）
Virginia Tech researchers land cover change African savannas
2017/11/23
A new study by Virginia Tech researchers tracks land cover changes in the Chobe district of Northern Botswana and provides information that will allow governments and nonprofit organizations to improv...
'Zombie ant' brains left intact by fungal parasite（图）
Zombie ant brains left intact fungal parasite
2017/11/23
A fungal parasite that infects ants and manipulates their behavior to benefit the fungus' reproduction accomplishes this feat without infecting the ants' brains, according to a study led by Penn State...
A passer-by drops something and you spring to pick it up. Or maybe you hold the door for someone behind you. Such acts of kindness to strangers were long thought to be unique to humans, but recent res...
Use of glow sticks in traps greatly increases amphibian captures in study（图）
Use of glow sticks traps greatly increases amphibian captures
2017/11/23
With amphibian populations declining around the world and funds to find the causes scarce, a team of Penn State researchers has shown that an unorthodox tactic will make it easier and therefore less e...
Land cover change in Botswana savannas:Don't blame the elephants（图）
Land cover change Botswana savannas Don't blame the elephants
2017/11/23
Why are drylands changing in the Chobe district of Northern Botswana? A new study tracks differences in the savanna there across 30 years, and provides information that will allow governments and non-...
Alligators,Rulers Of The Swamps,Link Marine And Freshwater Ecosystems（图）
Alligators Rulers Of The Swamps Link Marine Freshwater Ecosystems
2017/11/23
The sophistication of radio transmitters has moved well beyond the days of walkie-talkies. Now transmitters similar to those that track space mission orbiters are being used here on Earth to follow al...
Hormones Help Tadpoles Trade Size For Survival In A Warming Climate,Says Uc Study（图）
Hormones Tadpoles Trade Size Warming Climate Uc Study
2017/11/23
Deep within aquatic ecosystems all over the world, certain toad species have managed to survive warmer and drier climate change. But the method behind their metamorphic adaptation to environmental cha...
Stanford research finds that diversity of large animals plays an important role in carbon cycle
Stanford diversity of large animals plays carbon cycle
2017/10/25
Trees in tropical forests are well known for removing carbon dioxide from the air and storing the potent greenhouse gas as carbon in their leafy branches and extensive roots. But a new analysis led by...
多效性基因或使脊椎动物构造5亿年未大变
多效性基因 脊椎动物
2017/10/10
5亿多年来，脊椎动物虽然进化出多种多样的物种形态，但基本构造却没什么变化。日本研究人员通过大规模基因数据分析发现，多效性基因很可能制约了脊椎动物进化的多样性，新研究将有助于加深对生物进化的理解。