Giant snakehead fish have established themselves in Sri Lanka's Deduru Oya reservoir, threatening native fish species and local fishing livelihoods, reported Mongabay. In mid-June, an angler pulled an ...

Some pet tropical fish are naturally placid, while others are fearsome predators.

Peaceful tanks look great, but they’re not always the most exciting. Some fish bring a lot more drama, and for hobbyists who know what they’re doing, that can actually be the fun of it. These ...

Triggerfish, scorpionfish, and territorial reef species proved far more aggressive than the sharks cruising nearby.