It means that it feeds on eggs, eating eggs.
oofago is incorrectly written, and should be written as "reptiles" being its meaning: reptiles
That is to say that the larger, stronger pups developing will eat the of minor size and weak in the uterus, it is the way that ensures that the more strong and fit to survive
Oófago. Adj. masc. That you eat eggs. «Oón» Greek noun: egg, and the verb «phagéin»: eat. Synonym: ovívoro.