人魚は架空の動物であることを考えると、具体的な答えを与えることは困難です。しかし、人魚が海に住んでいることを考えると、卵を産む可能性がはるかに高くなります。
Given that mermaids are fictional animals, it is difficult to give a concrete answer. However, given that Mermaids live in the ocean, it is much more likely that they would lay eggs.