Creatures that live in the dark may lose their sight over evolutionary time.

凯伦·霍普金报道。生活在黑暗环境下的生物可能在演化过程中视力逐渐下降。

youdao

Creatures that live in the dark may lose their sight over evolutionary time.

凯伦·霍普金报道。生活在黑暗环境下的生物可能在演化过程中视力逐渐下降。

youdao