All members of this family have large braincase . Hominids have broad incisors and their canines are never developed into tusks. Members of this family are well-known for the complexity of their social behavior . Facial expression and complex vocalizations play an important role in the behavior of hominids. All make and use nests .
Hominids generally give birth to a single young , and the period of parental care is extended .
There are several fossil remains of extinct members of this family. Homo There are several fossil remains of extinct members of this genus. The scientific definition only lists those qualities that can be measured . At each level of the classification these qualities serve to describe either the things we have in common with other animal species in the same category or those that separate us from members of other categories. Of course, we can t forget the one thing many people erroneously consider to be uniquely human - intelligence.