Question

How could the following sentence be rewritten as a declarative sentence?

Does the short tail of the saber-toothed tiger indicate that it does not chase its prey

Answer 1

The sentence you're given is written as an interrogative sentence, also known as a question.
It can be rewritten as a statement (declarative sentence).

"The short tail of the saber-toothed tiger indicates that it does not chase its prey."