在《第九区》导演尼尔·布洛姆坎普的科幻短片《Zygote》中，展现了一种极具视觉冲击的怪物。这种怪物打破了传统异形生物对称性的设计方式，以其无序拼贴的结构挑战观众心理极限，甚至被认为比经典异形更为恐怖。今天的怪物档案，我们来聊聊合子异形生物。

Central to this all is a zygote, which is what’s formed after a sperm and egg have a little rendezvous. Here’s what happens. A zygote is a fertilized egg.[1]#1 It’s created when sperm meets ...

Evaluative effectiveness of follicular output rate, ovarian sensitivity index, and ovarian response prediction index for the ovarian reserve and response of low-prognosis patients according to the ...

In the alternative, scientists could edit a newly conceived Asian elephant zygote directly. Either way, the next step would ...

While the basics of how identical twins originate is clear, the mystery lies in why. Identical twins arise from a single fertilized egg, or zygote, splitting into embryos with duplicate DNA, but what ...

Here's why. Identical twins (also called monozygotic or MZ twins) are conceived when a single sperm fertilizes a single egg and the resulting zygote divides in two. Because the zygote originated ...