Baby hippos, also known as calves, are adorable and exhibit fascinating behaviors, including yawning. When baby hippos yawn, it’s not just a sign of sleepiness. Yawning in hippos is often associated ...

Yawning question Young children don't find yawning contagious, according to a new British study. James Anderson and Ailsa Millen from the University of Stirling report in the journal Biology Letters ...