The black market trade in exotic carnivorous plants is so vigorous now that botanists are keeping the location of some rare species a secret.

现在，外来食肉植物的黑市交易非常活跃，以至于植物学家一直对某些稀有物种的位置三缄其口。

Only a few rare species are known to produce the toxic trichothecenes.

只有一些稀有物种产生有毒的单端孢霉烯。

They are investigating the autecology and natural history of rare species.

他们正在调查稀有物种的起源和自然史。

So it's unlikely they're going to feed on any rare species.

因此，它们不太可能对这些珍稀物种下手。

I felt like an ornithologist looking for a rare species.

我觉得自己好像是一个正在寻找稀有物种的鸟类学家。

China's record of protecting its rare species has been desultory.

中国在保护其珍惜物种方面有着令人失望的记录。

So, it is everybody's responsibility to protect rare species.

所以，每个人都有责任保护稀有物种。

Unfortunately, such a rare species is now faced with the danger of being extinct.

不幸的是，这种稀有物种现在正频临灭绝的危险。

Unfortunately, such a rare species is now faced with the danger of being extinct.

不幸的是，这种稀有物种此刻正频临灭绝的危险。

With luck, scientists can help the rare species avoid their own journey to Ka Lae.

幸运的是，科学家可以帮助珍稀物种避免自己旅途到达卡莱城。

In its altitude 600-4000 meters there also found many rare species of plants and animals survived.

在他海拔600 - 4000米中，还发现了许多世上稀有的植物和动物种类存活。

The report says the plan endangers rare species of trees and birds; nine found only in Mabira risk extinction.

报告说计划会危及稀有树木和鸟类物种；马拉比仅有9种濒危物种。

According to the Royal Horticultural Society only one nursery in Britain was thought to supply the rare species.

据皇室园艺社团说，英国只有一个花圃提供稀少物种的。

Other rare species that would be harmed by the Pascua dams include the torrent duck and the white-bellied seedsnipe

帕斯夸大坝的修建同时也危及到了其他珍稀物种如湍鸭（torrent duck）和白腹籽鹬（white-bellied seedsnipe）的生存。

As is often read in the newspaper reports, wild life especially the rare species is threatened with extinction.

如经常在报纸上报道，野生动物特别是珍稀物种灭绝的威胁。

Many slow growing rare species stop altogether because they just don't like sitting in a large volume of moist mix.

一些长得慢的稀有品种甚至可能会完全停止生长，因为她们就是不喜欢呆在这么多潮乎乎的土里。

What appears to be part of a spring wedding bouquet is actually a nest for a rare species of solitary bee, a new study says.

一项新研究发现，有一种稀有的单居性蜜蜂的巢穴看起来就像是一场春天婚礼的花束一般。

As important as keeping rare species from disappearing, he says, is keeping ecosystems - including its top predators - reasonably intact.

同样，不让重要的稀有物种消失是为了保持生态系统的完好无损，包括在其顶端的食肉动物。

For years, Mr. Pitman, the U.S. Marine ecologist, has searched the world's rivers and oceans for rare species of dolphins and whales.

多年以来，美国海洋生物学家Pitman足迹遍及世界各大河流和海洋，搜寻稀有的海豚和鲸鱼。

The two creatures were found about six miles apart, which he believes may be the full extent of the area colonised by the extremely rare species.

这两只变色龙发现的地点相隔6英里。 马歇尔相信，这一稀有物种的栖息地差不多也就这么大。

Local officials said Tuesday that Brian Balaon, 22, killed a Filipino Eagle on July 10, seriouly violating the country's law on preserving rare species.

环保官员说，布莱恩的其行为严重违反了该国关于保护珍稀物种的法律。

Hiking: Hikers have opportunities to see fabulous species of birds that do not frequently visit backyards or urban areas, including rare species and birds of prey.

登山：登山者们有机会看到很多在庭园和城市中不常见的美丽鸟儿，包括一些稀有物种和猛禽。