近亲结婚将将西班牙哈普斯堡皇室引向衰退。

Inbreeding seen to bring down Spain's Habsburgs.

youdao

近交衰退指近交个体的适合度相对下降的现象，它是近亲繁殖的主要障碍。

Inbreeding depression is the decrease of offspring fitness after inbreeding and is one of the primary forces selecting against the evolution of self-fertilization.

youdao

近交衰退指近交个体的适合度相对下降的现象，它是近亲繁殖的主要障碍。

Inbreeding depression is the decrease of offspring fitness after inbreeding and is one of the primary forces selecting against the evolution of self-fertilization.

youdao