A 200 year-old pot that makes tasty food without requiring fire.

Ecologists believe that oaks require fire to flourish; they can withstand it, other species cannot.

In such systems, many plants have adapted and require fire to germinate.

But I can't think of a way to power an engine aboard ship which doesn't require fire and water.

In later years, he was remembered as the "father" of the law requiring fire escapes on large buildings.

It does not tolerate shade and requires fire to keep the habitat open and sunny.

Another Harris measure, supported by building contractors, weakened measures requiring fire escapes in new buildings.

X. australis is not often seen in bloom because this species requires fire to stimulate its reproductive cycle.

Its cones are serotinous and require fire to open.

It requires fire to clear larger vegetation and brush away so it can receive adequate sunlight.