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?

In the duck species Anas platyrhynchos, eggs of intermediate weight are more likely to hatch than light or heavy eggs.  In house sparrows, it was discovered that both small and large individuals had higher mortality rates in a storm than medium-sized sparrows.  These are both likely examples of

Which of the following is the dental pattern for humans?