The fish mature in a year and females can spawn every four days, pumping out 2 million eggs a year.

The lionfish population exploded in the Florida Keys and the Bahamas between 2004 and 2010.

"They're moving into new areas and, when they get settled, the population increases pretty quickly."

Lionfish now are more common in the Bahamas than their home waters.

There are no natural diseases or predators for invaders so they grow exponentially.

The species have a higher reproductive rate than native species.

The species can successfully out-compete native species.

A physical danger to boaters

They may eat too much of the base of the food chain.

They may be a new source of food.

A and B only

the exotic pet trade

transported by human

planted in landscapes

all of the answers

A native species in that area

An organism that has many natural predators

A non-native species in that area

A species organism whose population is well undercontrol