27 interesting facts about pigs - Page 3 of 9

The squeal of a pig can reach 115 decibels. This is louder than the sound of a jet engine, which barely reaches 112 decibels.

Thanks to pigs, mankind has insulin and more than 40 other medical drugs.

Since pigs have a well-developed sense of smell, they are used to search for truffles, and sometimes sniff out drugs in the service of the police.

The closest relative of the domesticated pig is the wild boar. Today it can be found in the forests of Europe and Asia.