Six critically endangered Mekong giant catfish — one of the largest and rarest freshwater fish in the world — were caught and ...

Occurs in both marine and freshwater environments. Diet Carnivorous, feeding on fish, crustaceans, birds, mammals, and occasionally larger prey such as deer and wild pigs. Behavior Less aggressive ...

These primarily freshwater fishes are native to tropical America ... The dominant males tend to be larger, more aggressive, and more colorful than subordinate males. Their physiology and social ...

Beneath the serene waves of lakes, river, and seas, lurk some fish with terrifyingly sharp teeth. Here are a few different ...

“What has changed in the past two years is how much more aggressive they’ve become in marketing to younger audiences,” Cashman said. There is some encouraging data on youth vaping. The ...

The breakneck speed and diehard nature of Donald Trump’s Cabinet picks send a clear message that the Republican president-elect has an aggressive plan for major upheaval at the federal agencies ...

Billions of people rely on freshwater sources for drinking water and power generation. Around the world, 70 percent is used for agriculture. At least 10 percent of animals live exclusively in ...

So think freshwater reef fish and you would be about right ... top 7.5–10cm/3–4in total length but fed rich foods in the aquarium they can reach 12.5–15cm/5–6in. They are aggressive and territorial ...

No freshwater fish has a more fearsome ... malabaricus are not overly aggressive, but require a larger territory. Along riverbanks adults are usually spaced 3-4m/10-13’ apart. As with all wolffish ...