阿格利罗的团队发现,食蚊鱼最多可以分辨大到16的两个数字的大小,但前提是每个鱼群中鱼的比例大于2:1。
Agrillo's team found that mosquitofish can discriminate between numbers up to 16, but only if the ratio between the fish in each shoal was greater than 2:1.
夏季拍摄时,你应携带防蚊油,防晒霜和防暑用品。
You shall take with you the anti-mosquito oil, sun-proof and sunstroke preventive articles for summer location shot.
可向积水中加入蚊油或杀幼虫剂(例如双硫磷、杆菌属亚种苏云金杆菌等)。
Larvicidal oil or larvicide (such as temephos, Bacillus thuringiensis subspecies israelensis etc.) can be applied to stagnant water.
雌蚊还会通过光线来寻找血液。
这两种疟疾都是通过按蚊传播。
什么是飞蚊症,它们是怎么形成的?
雄蚊和雌蚊都是以植物汁液和其他甜食为食。
Male and female mosquitoes alike get their nourishment from plant nectar and other sugar sources.
飞蚊症的惹人之处全是心理作用。
It's true; being bothered by floaters is entirely psychological.
只有雌蚊吸食血液。
所有这些主要病媒按蚊均在夜间叮咬。
一些不同种类的伊蚊和趋血蚊传播病毒。
Several different species of the Aedes and Haemogogus mosquitoes transmit the virus.
飞蚊症可以引起抑郁,焦虑或相关的问题。
Floaters may cause depression, anxiety and many other related problems.
自然不是蚊雷。
怎么样阻止飞蚊的形成?
真正的问题是当新的飞蚊形成的多于频繁。
The real problem arises when new floaters are formed on a frequent basis.
如果雌蚊离你足够近,就会用它们的热感应器来寻找你。
If the female mosquitoes are close enough, they can also find you using their heat sensors.
很简单,无视飞蚊。
食蚊鱼是淡水鱼,以蚊子幼虫为食,高度的群体化。
Mosquitofish, freshwater fish with a taste for mosquito larvae, are highly social.
当一只食蚊鱼发现只有它自己时,当务之急就是找到其它的伙伴。
When a mosquitofish finds itself alone, its top priority becomes finding others.
然而,其实有很多的方式可以减少或停止可见飞蚊的形成。
However, there are ways to actually decrease the floaters that we can see and, most importantly, stop more floaters from being formed.
混油处理后的真菌孢子同未处理的真菌孢子相比,有效杀蚊率提高50%。
The combination of oil and fungal spores killed up to 50 percent more mosquito larvae than untreated spores.
登革热是一种蚊传感染,近年来已成为一个主要的国际公共卫生关注问题。
Dengue is a mosquito-borne infection that in recent decades has become a major international public health concern.
有些人想用手术根除飞蚊症,并没有想过其实有很多其他的选择。
Some want to get rid of them by surgery, without analyzing the numerous alternatives.
它们的大小和形状很广,从几乎看不到的微点到庞大的龙形飞蚊。
They range enormously in size and shape, from tiny dots that can be barely seen, to enormous dragon-shaped floaters.
更强的是据说大脑会适应飞蚊的更快如果你凝视月亮每晚五分钟。
Even better, it's rumored that the brain ignores floaters faster if you gaze at the moon for just five minutes every night.
适当穿衣,使用驱蚊剂、浸渍过药物的蚊账、杀虫剂、纱窗和空调等
Wear appropriate clothing, and use repellents, impregnated bed nets, insecticides, screens and air-conditioning
从你的字典里去掉飞蚊症这个单词,然后愉快的生活,别忘了吃蔬菜。
Erase the word "floater" from your vocabulary and go live a happy life. Don't forget your vegetables.
不过,在媒蚊密度较高时,蚊虫向人传播病毒的相对重要性可能增加。
However, at times of high vector densities the relative importance of mosquito-to-human transmission may increase.
按蚊雌性蚊子在叮咬获取育卵所需血液时从受感染者那里染上这种寄生虫。
Female Anopheles mosquitoes pick up the parasite from infected people when they bite to obtain blood needed to nurture their eggs.
按蚊雌性蚊子在叮咬获取育卵所需血液时从受感染者那里染上这种寄生虫。
Female Anopheles mosquitoes pick up the parasite from infected people when they bite to obtain blood needed to nurture their eggs.
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