YOU SAID:
I went to the zoo and saw a snake
INTO JAPANESE
私は動物園に行って、ヘビを見た
BACK INTO ENGLISH
I went to the Zoo and saw the snake
INTO JAPANESE
私は動物園に行き、蛇を見た
BACK INTO ENGLISH
I went to the Zoo and saw the snake
That didn't even make that much sense in English.