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研究:一些大型动物大脑体积关联灭绝概率
哺乳动物 大脑体积 灭绝概率 科学报告
2022/5/10
章鱼不仅能感知生理疼痛还有情绪反应 (图)
章鱼 无脊椎动物 疼痛 情绪反应
2021/7/28
近日,发表在《iScience》上的一项研究表明,章鱼对疼痛的感觉和反应可能与哺乳动物相似。这是无脊椎动物拥有这种能力的第一个有力证据。
性别或可在出生前选择 动物实验首次将“雌雄精子”分开
性别 动物实验 雌雄精子 分开
2019/8/19
据美国《新闻周刊》网站近日报道,日本科学家在携带X染色体的老鼠精子中发现了一种X染色体蛋白,并将其与携带Y染色体的生殖细胞分离开来,他们用这一技术创造了一窝主要由一种性别组成的小鼠。他们表示,最新研究未来可能对包括人类在内的动物性别选择产生巨大影响。
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...
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...
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...
At first glance, humans seem to have very little in common with Cassiopea, a primitive jellyfish. Cassiopea is brainless, spineless, and spends essentially its entire life sitting upside down on the o...
Skin-ditching gecko inexplicably leaves body armor behind when threatened(图)
Skin-ditching gecko body armor threatened
2017/9/4
When trouble looms, the fish-scale geckos of Madagascar resort to what might seem like an extreme form of self-defense — tearing out of their own skin.
Their unusually large, overlapping scales flake...
Study Finds Pallid Bat Is Unfazed by Venom of Arizona Bark Scorpion(图)
Pallid Bat Unfazed by Venom Arizona Bark Scorpion
2017/9/19
The Arizona bark scorpion is the most venomous scorpion in North America. It possesses venom that causes serious pain in humans and can kill a child if anti-venom is not administered quickly.The palli...
Lizard blizzard survivors tell story of natural selection(图)
Lizard blizzard survivors tell story natural selection
2017/9/4
An unusually cold winter in the U.S. in 2014 took a toll on the green anole lizard, a tree-dwelling creature common to the southeastern United States. A new study offers a rare view of natural selecti...
Into a competitive world,guppies are born not just bigger,but more mature(图)
competitive world guppies born not just bigger more mature
2017/9/1
Throughout nature, moms engage in a trade-off: Churn out a bevy of offspring and hope for the best, or have fewer kids but invest more in their survival.Trinidadian guppies provide a model example of ...
Noise pollution from gas compressors changes abundance of insects, spiders
Noise pollution gas compressors insects spiders
2017/7/20
The relentless roar of natural gas compressors influences the numbers of insects and spiders nearby, triggering decreases in many types of arthropods sensitive to sounds and vibrations, a collaborativ...
Leaping Lizards!
Leaping Lizards
2017/7/24
Many geckos inhabit trees, often living high in the canopy. Relying on their incredible adhesive strength to help them break their fall, they jump from trees, and land on either leaves or relatively s...