Here's a marine stickleback skeleton and what marine sticklebacks have are these very welldefined pelvic spikes, so on their underside they have these very prominent spikes, and they use these spikes for defence because when you live in the ocean, you have some very nasty looking predators.

這里是一條咸水刺魚的骨骼 咸水刺魚生有 非常明顯的骨刺 在它們腹部有突出的刺 它們用刺防御 因?yàn)楫?dāng)你生活在海里 你有長(zhǎng)相兇惡的天敵

We have a picture of a lake stickleback here.

我們有一張淡水刺魚的照片

And we've got a beach here for the sticklebacks to have their babies.

我們做了一片灘涂 讓棘魚在這里產(chǎn)寶寶

This little stickleback has no scales, and can only live in the clearest of freshwater.

這條小棘魚沒(méi)有魚鱗 并且只能在最清澈的淡水中存活

It's got tons of space in the back for cod and bream and sticklebacks.

我這車后面有無(wú)盡的空間留給鱈魚 鯉魚和棘魚啥的

Now, scientists have worked out which gene has mutated in the freshwater compared with in the marine sticklebacks.

科學(xué)家已經(jīng)找到了 淡水與咸水刺魚相比 哪個(gè)基因發(fā)生了突變

The reason there are so many baby sticklebacks in the first place is because the majority are destined to be eaten.

棘魚寶寶數(shù)量如此眾多 原因就在于 他們中的大多數(shù)注定被捕食

Sticklebacks are closely related to sea horses and, like sea horses, it's the male who brings up the kids.

棘魚和海馬是近親 和海馬一樣 也是雄性養(yǎng)育幼崽

And you know, it will be really nice to see all those little secret lives that, you know, like sticklebacks doing their mating ritual in there that you never see normally.

而且能窺視這些小動(dòng)物的 秘密生活是很有趣的事 比如通過(guò)這個(gè)可以看到不常見的 棘魚交配

They want to discover the secret life of the wild otters, the high speed world of the dragonfly, the tensions within a kingfisher family, and the trials and tribulations of being a stickleback dad.

他們期望發(fā)現(xiàn)野生水獺的秘密生活 蜻蜓的高速世界 翠鳥家庭內(nèi)的緊張局勢(shì) 還有棘魚爸爸的考驗(yàn)和磨難