pushiest

The genus homo evolved bipedalism and big brains, allowing its pushiest parvenu, h. sapiens, to crush competition ever since.

人属动物（genushomo）逐渐进化为直立行走，脑容量较大，从而使其最富进取心的“暴发户”——智人（h.sapiens）自此以后可以摧毁竞争对手。