Boys at single-sex schools were said to be more likely to get involved in cultural and artistic activities that helped develop their emotional expressiveness, rather than feeling they had to conform to the "boy code" of hiding their emotions to be a "real man".

According to a newly published study, cats seem to be able to predict the location of hiding prey (獵物) using both their ears and an inborn (天生的) understanding of how the physical world works.

When winter comes, they return to their hiding places to eat the food.