Home> Animals > Mammals > Primates Submit Your Photo Slide Show No 38 Of 53 Prev    Next Howler-monkeys-07  Publish Date : 03-01-2008 Author : Haui Hits : 107 Rating : Not rated As their name suggests, vocal animal communication forms an important part of their social behavior. Specifically, the name comes from their distinctive loud barking whoop they make, which can be heard over considerable distances. Rate This Photo 5 - Best4321 Add Your Comment Your Name * Your Comment * Enter Validation Code * Prev    Next