给出一篇英文短文并要求将其中指定的单词替换成同义词。
下面是一篇英文短文，将其中的"large"替换成同义词。
"Elephants are one of the largest animals on Earth. They can grow up to 14 feet tall and weigh up to 12,000 pounds."
"Elephants are one of the biggest animals on Earth. They can grow up to 14 feet tall and weigh up to 12,000 pounds."