Native to China’s Yangtze River, the Chinese paddlefish was thought by many to be the world’s largest freshwater fish ... With poorly developed eyes, the fish fed with its mouth open, using ...

Invasive species cost the United States an estimated $120 billion annually and are a major driver of extinction for ...

The Clown Triggerfish is an eye-catching marine species known for ... The Harlequin Rasbora is a small freshwater fish with a ...

Fish can be found in freshwater, like ponds and streams ... They don't need to blink to keep their eyes moist, and they don't need to close their eyes because they don't sleep like other animals.