Но да, если это Штаты - там другая... среда.
Warren's students decorate and care for a hollow eggshell baby for two weeks. Not all the babies survive, Warren says. In fact, he estimates about half of the eggs suffer untimely deaths within the first week.
"There was a small drop during the second week, but most of the students who could keep it alive for one week could keep it alive for two weeks," he says.