When a species goes extinct, it dramatically changes the landscape of biodiversity.

当一个物种灭绝时，它会极大地改变生物多样性的状况。

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Because they can reproduce several times each year and produce large numbers of offspring, many insect species can generally adapt quickly to changes in their environment.

由于昆虫每年可以繁殖几次并产生大量后代，许多种类的昆虫通常能迅速适应环境的变化。

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Responding to changes in the CF echo's frequency, bats of some species correct in flight for the direction and velocity of their moving prey.

有些种类的蝙蝠会根据回声频率的变化来调整向猎物移动的方向和速度。

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The researchers have developed a way to make genetic changes in the three mosquito species known to spread malaria.

VOA: special.2009.12.22

Over long periods of time, these small changes result in the creation of new species.

VOA: special.2009.12.01

The Bush administration has made no secret of its intent to complete the endangered species changes quickly.

CNN: Bush set to relax endangered species rules

As I indicated above, in order to successfully uplift another species, changes are going to have to be made to the DNA at the embryonic level, if not earlier.

FORBES: Is It Ethical to Make Animals As Smart As People?

The effects of rising global temperatures are widespread and costly: more severe storms, rising seas, species extinctions, and changes in weather patterns that will alter food production and the spread of disease.

NPR: PROMISES, PROMISES: Climate Change