Staff expects it will take a long time to find families for all of the animals. But, experts said, it likely didn’t take the mice long to multiply given just how quickly they reproduce.

When a man arrived at a New Hampshire animal shelter last week claiming he wanted to surrender 150 pet mice, the shelter was ready to take them in.

When an overwhelmed man came to a New Hampshire animal shelter last week hoping to surrender 150 mice, shelter employees were ready to assist. He later clarified he had 150 containers of mice.

A man in New Hampshire surrendered nearly 1,000 mice to a local animal shelter and now workers are scrambling because those mice are giving birth to more mice.