If we think that an animal can predict or know the mental states of other animals, we call this

On what basis are australopiths separated into a gracile and robust groups?

The amount of sexual dimorphism within a primate species can be used as an indicator of typical social behavior for that group.  By using living primates as analogies to learn what we can from the fossil remains of extinct species, scientists infer that australopiths likely formed multi-male multi-female groups because

How can taphonomists differentiate between early hominin scavenging behaviors and hunting behaviors?  Give examples in your answer (2 points). 

What was the name of the archaeological site where Lucy (A. afarensis) was found?

List three of the four kinds of social groupings we see in primates. Give an example of a primate that follows each of the three strategies you describe.                         Social Group Form                                          Example a.  b.  c.

Which of the following is a derived feature for Tarsiers?

The Red Queen effect implies that:

Fish, birds, mammals, and reptiles all exhibit two sexes, but the means by which sexes are biologically produced are quite different (environmental stimuli, sex chromosomes, incubation temperature, etc.).  What does this imply about sexual reproduction?

What are the three necessary and sufficient conditions for natural selection?