1. Species: Thunderfish belongs to the class of Animalia, Chordata, Skeletonata, Order Perciformes, Family Channidae, Genus Channa, while blackfish is a species of snakehead.
2. Distribution area: The chinook usually inhabits coastal waters or brackish lakes, while the blackfish lives in freshwater environments.
3. Appearance: The chinook salmon is larger, reaching over 70 centimeters, while the blackfish is smaller, ranging from 15-30 centimeters in length. In addition, the body color of the brontosaurus is rich and varied, such as pearl red brontosaurus, seven-color brontosaurus, golden cobra brontosaurus, etc., while the blackfish usually presents an ebony green color.
4. Feeding habits: Brontosaurus feeds on small fishes, shrimps, aquatic insects, etc., while blackfish feeds on small fishes, shrimps, aquatic insects and other small invertebrates.
5. Breeding method: The breeding method of Thunderfish is more special, it usually builds a nest to lay eggs and incubate them in the mouth, while the breeding method of Blackfish is relatively simple, the male is responsible for building and protecting the nest, and the female is responsible for laying and fertilizing the eggs.
To summarize, although both the dragonfish and the blackfish belong to the snakehead family, there are significant differences in their distribution areas, appearance, eating habits and reproduction methods.