It's thought that they don't have sufficient milk or energy to care for two.

人们推测是因为它们没有足够的或精力来照顾两只熊猫幼崽。

The cream is considered to be the best tasting part of milk.

脂被认为是最美味的部分。

It's six months since she last fed and her milk is starting to run dry.

它已经6个月没有吃东西了，它的也即将耗尽。

Puck's milk is five times richer than human milk.

帕克的比人类的奶水浓五倍。

And the hormone prolactin is connected with lactation, which is the production of milk by mammals.

催激素与有关，它是哺动物分的过程。

The tiny spiderlings are completely dependent on their mother's milk for the first 20 days of their life.

幼蛛在出生后的前 20 天完全依赖于母亲的。

Cream is the fat in milk. And we use cream from farm animals to make many tasty foods.

脂是的脂肪。我们用产自农场动物们的脂来制作美味的食品。

Every day, it will drink around 500 liters of fat-rich milk.

每天，它要饮用约500升富含脂肪的。

The koala genome has also revealed genes involved in reproduction and in milk production.

考拉基因组还揭示了与繁殖和生产相关的基因。

Their mother's milk contains 60% fat, the fattiest milk in the world.

它们母亲的含有60%的脂肪，是世界上脂肪含量最高的。

When babies breastfeed, some of the milk ends up in their nasal cavity.

当婴儿母喂养时，部分会进入他们的鼻腔。

For mammals, the hyoid is part of what gives babies the ability to suckle milk.

对于哺动物而言，舌骨是赋予婴儿吸吮能力的一部分。

Remember, oxytocin is in part responsible for breast milk production.

记住，催产素在一定程度上负责的产生。

The lobules are the infrastructure where milk is made.

小叶是产生的结构基础。

It's not you mama's tip, but it's real milk.

虽然不是你妈的 但这可是真的牛奶。

Now she converts the last of her fat reserves into milk for her cubs.

现在它将仅剩的一点脂肪 变成喂养它的宝贝们。

Breastfeeding is feeding a baby directly with milk from the mother's breasts.

母喂养是直接用母亲房里的喂养婴儿。

And after just three to five days guzzling the stuff, seal pups double their body weight.

而且仅仅在喝了三天到五天的后，海豹幼崽的体重就会翻倍。

But seals aren't the only animals with extreme milk.

但海豹并不是唯一一种拥有极端的动物。

Early pumping will help establish her milk supply, even if the baby can't latch right away.

早期频繁吸吮有助于建立她的供应，即使宝宝暂时无法立即含住头。