These are leatherback sea turtle hatchlings, the largest species of turtle alive today.

这些是棱皮龟龟，是现存最大海龟物种。

For a hatchling sea turtle, the answer is magnetoreception.

对于刚出壳海龟来说，答案是磁感应。

In June, when the hatchlings emerge, they are vulnerable.

每到六月，刚破壳小鬣蜥异常脆弱。

Eggs and hatchlings, clumps of juveniles and then—further out—adults.

从恐龙蛋到刚出壳新生命，从一群到更往后成年恐龙。

Another hatchling has its first glimpse of a dangerous world.

另一只刚孵化小鬣蜥第一次见识了这个危险世界。

We would play in the hay, the constant tweeting of the hatchlings—a constant background symphony.

我们会在干草中嬉戏，孵出小鸟不停地鸣叫，这是不间断背景交响乐。

Carnivores gulp down virtually every hatchling. But a few do make it.

捕食者几乎吃完了所有小海龟。不过还是有几只幸存下来。

Down at the water's edge, hatchlings are taking their first swim.

在水边，小海龟们正在第一次游泳。

Thousands of defenseless hatchlings are let loose into a world of fierce predators.

数以千计没有保护就这样来到了充满凶残肉食者世界。

The hatchling is tiny compared to its gigantic parents.

刚孵出庞大父母相比是如此瘦小。

When they are in the nest, the hatchlings start vocalizing from within the egg to synchronize hatch.

当还在洞穴中时，为同步孵化其他龟，刚孵化龟会在壳内开始发声。

In these colonies, a queen lays the eggs, and worker bees called nurses care for the resulting hatchlings.

在这些蜂群中，蜂王产卵，被称为看护工蜂负责照料孵化出来蜂。

The mother returns and the hatchling announces, " You are a bird, and you are my mother" .

终于，鸟妈妈回来了，小鸟说：" 啊，你才是我妈妈！"

Most meat eaters keep their distance from the hatchlings of an apex predator, but not this reptile.

大多数肉食动物都会远离顶级捕食者，风神翼龙则不然。

A well-constructed egg makes it that much more likely that a hatchling will survive.

一颗结构合理恐龙蛋会使成活率大大增加。

Right.So, sea turtles, and especially their hatchlings, often serve as prey for a lot of predators.

对。所以，海龟，尤其是它们龟，经常成为许多捕食者猎物。

So, if the sand is very hot and the eggs are above 31 degrees Celsius, the hatchlings will be female.

因此，如果沙子很热，蛋温度超过31摄氏度，新孵化出小海龟将是雌性。

Stuck in the shovel's jaws, the hatchling appears doomed until, miraculously, the shovel lifts the bird back to its nest.

被卡在挖掘机铲斗里小鸟似乎在劫难逃，但铲斗居然奇迹般地将它送回了鸟巢。

Egg-laying explains the huge size differences between the most colossal dinosaurs and their hatchlings.

产卵解释了最大恐龙和它们之间巨大体型差异。

Being a hatchling, you don't have horns, you don't have plates, you don't have any kind of armor on the body.

刚孵化兽，没有角和鳞片，身体上没有任何甲壳。