Biology lessons is fine but you can’t beat real life observations..
Plaza Vieja, Habana vieja, Cuba
Every time when christmas and new year is approaching in Cuba you hear pigs screaming everywhere.
It is forbidden to slaughter cattle, so pork is one of the few options that remains!
In the (“el período especial”) ninetys, after the sovjetunion collapse and following deep crisis in Cuba there was even a dictate issued from highest authority, that the Cubans should keep pigs in their homes as emergency food.
Even in small apartments you could see persons feeding and nursing a couple of gigantic hogs .
This pig (above) made fierce resistance and tried to escape several times when transported to the slaughterers block..
The author Pedro Juan Gutiérrez looking out from his apartment over Centro Habana. The story in his book Dirty Havana trilogy, takes place around this very building and the surrounding quarters of the city.