Let's-Read-and-Find-Out Science: Where Are the Night Animals? 自然科学启蒙-夜行性动物躲在哪儿

  Did you know that a barn owl has one ear higher than the other? This helps it find squeaking mice that humans can't hear. Baby opossums hang on to their mother's fur for safety. Read and find out more about what nocturnal animals do as we sleep.