Question

choose the transition that emphasizes a point. chimpanzees and humans are closely related. millions of years ago. /, scientists believe we share an ancestor who lived in fact later however

Explanation:

The phrase "In fact" is used to emphasize a point. "Later" indicates time - sequence, and "However" shows contrast. Here, we want to emphasize the point about the close relation between chimpanzees and humans and their shared ancestor, so "In fact" is appropriate.

Answer:

In fact