A 3-foot-long ball python escaped from its cage inside a Wisconsin high school – and is believed to be hiding out inside a science lab ventilation system, school officials told The Post.

Kai, a three-foot-long ball python was on the loose somewhere inside the school premises after it escaped its cage by knocking off its lid. INTERNATIONAL BUSINESS TIMES NEWSLETTER SIGNUP ...

There is one male ball python at the zoo, but he's kept in a separate enclosure. The two snakes haven't had physical contact since the 1990s, so the snake would have been holding on to the sperm ...