A venomous lionfish breaks into a huge ball of swirling baitfish .
一只有毒的狮子鱼闯进了一大群游在一起的小鱼中间。
Red lionfish are pretty , but they are also greedy .
红蓑虽然外表好看，但也贪婪。
The lionfish gorge on small fish , mollusks and invertebrates , enough to fill out to as much as 480 grams and decimate local populations on the coral reefs they inhabit .
The lionfish are largely taking over thanks to overfishing by us humans , which has seriously diminished native grouper and snapper that would otherwise play the same role .
