Чтобы это значило?

[Авось]

Нашел вырезку из старого журнала за 1969 год. Под картинкой такой текст: "If you were to put bathing caps on the heads of these fish they would not react to an approaching finger. And when their heads are covered with hoods made out of lastex, which obstructs the sense organs located along their sides, they swim about in a strange manner and are incapable of sensing the approach of foreign objects. They even allow people to touch, fondle and push them."
Чтобы это значило?