When an animal leaves more offspring, its genes will spread.

当动物繁殖出更多后代时， 就意味着它们的基因得到传播。

If a genetically modified person produces offspring.

如果一个转基因的人生产后代。

Today we go on a different kind of adventure, Jackson's life of parenting his offspring.

今天，我们将进行另一番，杰克逊养育子女的生活。

But savagely intolerant of other predator's offspring.

对其它掠食动物的幼崽则丝毫不能容忍。

Getting enough calories, staying safe and warm, or caring for offspring was practically impossible alone.

取得足够的热量、在温暖又安全的地方待着、照料着后代，这些都不可能独自完成。

Any offspring of these modified mice would inherit Lyme disease immunity.

它们的所有后代将对莱姆病菌免疫。

Scientists say that these defenses are passed down to plants offspring through their seeds.

科学家们说，这些防御通过种子传递给植物的后代。

You survive and reproduce, and pass that trait on to some of your offspring.

你存活下来，繁衍后代，并将这种特质遗传给你的后代。

The offspring that have beaks like yours flourish.

着你这样喙的后代会茁壮成。

At every stage, the incorrect instructions are passed along to the cells' offspring.

在每一个阶段，错误的讯息都会被传递给这细胞的后代。

Some of these mixotrophs even transmit the algae to their offspring.

其中有些混合营养生物甚至将藻类传给自己的后代。

Workers from nests up to several meters away begin to steal offspring from our queen.

有公蚁从几米开外的蚁穴里跑来，开始偷取我们蚁后的幼卵。

This makes their offspring more vulnerable to predation than those of the tunnelers and rollers.

与挖道蜣螂和滚粪蜣螂相比，这种方式使它们的后代更容易遭到猎食。

Highly symmetrical bodies in animals might signal quality genes, and better offspring.

动物界存在的高度对称的体型可能代表着高质量的基因、以及更好的后代。

Which would make them and their offspring an easy meal.

这会使树蛙及其后代轻易成为天敌的盘中餐。

Parents often reluctantly comply, worried about their offspring's education.

考虑到孩子的教育，父母往往会不情愿地遵从。

Thus, the pack's so-called alpha wolves are actually just the parents leading their offspring.

因此，狼群所谓的阿尔法狼实际上只是领导自己后代的父母。

Ichthyosaurs and other contemporary viviparous species, by contrast, gave birth to multiple offspring.

对比之下，鱼龙和其它现代胎生物种可以生育多个后代。

Although, closely related species will often hybridize with each other to produce offspring.

尽管关系很近的物种通常会相互杂交产生后代。

Female black rhinos like to spend time with their offspring.

雌性黑犀牛喜欢和他们的后代在一起。