Guinea pigs are small animals with big opinions, and squeaks are the fastest way they share them. These sounds typically begin early, often within two weeks of birth, and continue throughout the day.

Guinea pigs are popular pets for good reason - they’re social, expressive, and surprisingly vocal. If you've ever stopped to wonder what all those squeals, purrs, and clicks mean, you're not alone.

Learn more about these communicative and gregarious rodents. Laura Moss is a journalist with more than 15 years of experience writing about science, nature, culture, and the environment. Guinea pigs ...