Some species of Arctic birds are threatened by recent sharp increases in the population of snow geese, which breed in the Arctic and are displacing birds of less vigorous species.
某些种类的北极鸟受到近来雪雁数量急剧增加的威胁，这些雪雁在北极繁殖，并且正在取代生命力较弱的鸟类。
Pythons breed rapidly, and the Burmese population is estimated to be in the thousands.
蟒蛇繁殖得很迅速，据估计缅甸蟒的数量将有数千条。
The future of slender-billed vultures in India may lie with the first of their kind to breed in captivity following a 97% crash in the species population since the 1990s - or it may not.
印度尖嘴秃鹰的未来也许取决于首次尝试的人工繁殖，自从1990年以来，它的数量已经减少了97%。
If you are responsible, you will assist in population control and not allow your animals to over breed.
如果你有责任感，你应该协助控制动物总数，不要允许你的动物过度繁殖。
This is the Georgia Guidestones scenario - to reduce the world's population. The survivors will (in their eyes) be a stronger breed of human.
这是佐治亚州石碑的版本，来减少世界人口。幸存者(在他们眼里)将是最强壮的人类品种。
As the farmland is limited and the population continuously increases at present, the object in plant breeding is to breed crop varieties with relatively drought tolerance.
在耕地有限，人口不断增长的今天，培育耐旱能力相对提高的植物品种已成为植物分子育种工程的目标之一。
Some technical measures were used in the breed control of Hequ horse, such matters as defining conservation region, determining effective population size and having a right foundation herd etc.
河曲马品种的保种与选育，应采取划定保护区，建立育种核心群，确定群体有效含量，控制近交，调整马群结构和合适的公母比例等措施；
The product is beneficial microorganisms population purified and cultivated from nature, it will breed in multiples immediately after throwing into water body.
本品是从自然界纯化培养得到的有益微生物种群，投入水体后立即以倍数繁殖。
The product is beneficial microorganisms population purified and cultivated from nature, it will breed in multiples immediately after throwing into water body.
本品是从自然界纯化培养得到的有益微生物种群，投入水体后立即以倍数繁殖。
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