所有的太平洋鲑类，包括雄性的刚头，在产卵或者是洄游产卵的途中都要经历形态变化。
All Pacific salmon, including male steelhead, undergo changes when spawning or migrating to spawn.
人类的未来安全了，尽管可能受到种种威胁，包括雄性流浪癖、雌性粘人病、两代冲突和一系列天崩地裂的自然灾害。
The future of the human race is assured, if threatened by male wanderlust and female clinging, violent intergenerational conflict and a series of natural catastrophes of biblical proportions.
于是，科学家们采集了法国一个小溪水域的划蝽，并对 13 只雄性划蝽的行为进行了记录，包括声音大小和身材大小。
So they collected water boatmen from a stream and pond in France. They recorded 13 males doing their thing.
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