What is a characteristic feature of flowers pollinated by geckos?

壁虎授粉的花有什么特点？

Sam keeps lots of crickets in boxes. He feeds them to his geckos.

萨姆盒子里放了很多蟋蟀。他将这些蟋蟀喂给他的壁虎。

But some aphids, katydids, lizards, geckos, and snakes only ever reproduce via parthenogenesis.

而有些蚜虫、蝈蝈、蜥蜴、壁虎、蛇等只进行孤雌生殖。

Now, geckos a lot of times have eyelids but they don't close completely.

很多时候壁虎都有眼睑，但它们并没有完。

Each pinhole projects a separate, sharp image onto the geckos retina.

每个针孔将一个单独的清晰图像投射到壁虎视网膜。

It's also home to many different animal species including rare geckos and the snow leopard.

它也许多种野生物种的家园，包括稀有的蜥蜴和雪豹。

Meanwhile, nocturnal geckos have pupils that shrink into slits studded with pinholes in higher light conditions.

与此同时，夜间活动的壁虎的光照条件下瞳孔会收缩成布满针孔的狭缝。

The team discovered that geckos have millions of hair-like structures on their feet.

研究小组发现壁虎的脚有数百万个毛发状结构。

The large numbers of setae produce very strong forces. They give the geckos wonderful " sticking" power.

大量的刚毛会产生非常强大的力量。它们赋予壁虎奇妙的“粘着”力量。

Even the famously adhesive feet of geckos usually can't get a grip.

就连壁虎有名的胶脚都粘不去。

The giraffe eats the acacia tree, so it continually produces those galls which form the geckos' home.

长颈鹿吃金合欢树，因此树不断产生出虫瘿，从而形成了壁虎的家。

Today we can manufacture structures that mimic the hairs of a gecko's foot.

今天我们能够造出模仿壁虎脚趾毛发的结构。

They work at the University of California in the United States. They have studied geckos for many years.

他们美国加州大学开展研究工作。他们多年来一直研究壁虎。

They aren't sharp like a bird or sticky like a gecko.

它们不像鸟那样锋利，也不像壁虎那样粘人。

Scientists would love to create synthetic adhesives based on the gecko trick.

科学家们很乐意根据壁虎的这一特点合成粘合剂。

In fact, the whole gecko could dangle from a single one of its toes.

壁虎甚至可以整个吊一根脚趾。

One square millimeter of a gecko's footpad has 14,000 hair-like structures called setae.

壁虎脚趾一平方毫米，有一万四千个毛发状结构叫刚毛。

Researchers created mathematical models that revealed that the default for gecko feet is non-sticky.

研究人员因此构建了数学模型用于揭开壁虎脚趾平常不具有粘性的这个秘密。

Sam's geckos are now very much part of the family. He has had them for three years now.

山姆的壁虎现这个家的一部分。他已经养了三年。

Geckos can also easily loosen their grip and break into a dash, which has flummoxed physicists.

壁虎也能轻易松懈自己的抓力然后突然掉下，这就使很多物理学家们困惑不解。