Fact 1: Mammals breathe with the help of a diaphragm.

Fact 2: Hiccups are a result of spasms of the diaphragm.

Given the two facts above, answer the question "What kind of animal sometimes gets hiccups?" with the following options: 
- mammals
 - fur seals
 - fish
 - goats
 - humans
 - insects
 - worms
 - dogs


 

 mammals        