YOU SAID:
they eat the baby eating them
INTO JAPANESE
彼らはそれらを食べる赤ちゃんを食べる
BACK INTO ENGLISH
They eat babies who eat them
INTO JAPANESE
彼らはそれらを食べる赤ちゃんを食べます
BACK INTO ENGLISH
They eat babies who eat them
That didn't even make that much sense in English.