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Some researchers believe that _______ led to early Homo because it may have been a tool user.

Which of the following is a derived trait for platyrhines?   

As a species, H. erectus existed _______.

A 20 million year old fossil species named Proconsul has the following features: 2.1.2.3. dental formula, postorbital closure, fused mandible, Y-5 molar, and no tail. Where is the best placement on the chart?

A trait that helps to differentiate callitrichids from other primates is __________.

In what way does the skull of a haplorhine differ from that of a strepsirhine. 

In the Neanderthals on Trial documentary, what did Harold Dibble figure out about the famous neanderthal habitation site (Fontéchevade)?

When studying the evolution of primate behavior, the behavior must be at least partially [1], so the behavior is the [2].

If a primate has an intermembral index of 100, it is like a _________.

The presence of a rhinarium in a primate is an example of ________.