If a woman with PKU is pregnant what are risks to the fetus?

It is well known that women with poorly controlled PKU during a pregnancy put their baby at risk for developmental issues, poor head growth (microcephaly), poor overall growth, heart defects, and other structural birth defects.

Explanation:

sheep is a herbivore animal whereas grasshopper belongs to the class chordates but both of them feed on greens.  

if grasshopper and sheep feeding on a pasture land, i do not think both of them will have any impact on each other. however, the number of the species can make difference. since sheep feed on greens, there is a possibility there left no pasture land for the grasshoppers or they may get extinct.