YOU SAID:

the biological organism entered the ship with a loaf of bread attached to its back

INTO JAPANESE

生物が背中にパンを添えて船に入った

BACK INTO ENGLISH

Creatures enter the ship with bread on their backs

INTO JAPANESE

生き物はパンを背にして船に乗り込む

BACK INTO ENGLISH

Creatures board the ship with bread on their backs

INTO JAPANESE

クリーチャーは、パンを背中に乗せて船に乗り込みます

BACK INTO ENGLISH

Creatures board the ship with bread on their backs