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

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 ...

Gobies can be found in almost all bodies of water, including the coldest oceans to freshwater mountain streams. And there are plenty of marine gobies that are perfect for the reef aquarium ... not be ...

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 ...

They have been called “Frankenfish” and “fishzilla” because of their rugged reputation as aggressive and ... Once a popular freshwater aquarium fish, snakeheads may have been dumped ...

Looking for the best spots to see wildlife in America's gorgeous National Parks? Check out this list for the top Parks to ...

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 ...

The southern giant hornet is an “aggressive predator” that preys on invertebrates such as butterflies, dragonflies, mantids and grasshoppers, as well as other wasps and geckos, the researchers ...

Freshwater fish populations that dwell nearer the poles are outperforming their equatorial counterparts, researchers have ...

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

BUCHAREST, Dec 4 (Reuters) - Documents declassified by Romania's top security council on Wednesday said the country was a target of "aggressive hybrid Russian attacks" in a period of consecutive ...

Freshwater fish populations that dwell nearer the poles are outperforming their equatorial counterparts, researchers have found.