Fish fact files

Also, they lay their eggs during the full moon. The male will guard the eggs well, in fact. They are forceful and aggressive in nature. The movie was wrong in representing this animal. This kind of species is unique, particularly in the terms of appearance. They have orange and white stripes which are similar to a clown. There are some of them that have white and black stripes, though. All of them are male when hatched from the eggs. Based on some reports, the male will turn into female soon after the female fish dies.

This kind of fish has a good relationship with sea anemones. The clownfish may eat any dead tentacles of sea anemones. This will boost the circulation too. In return, the anemones will protect the fish from predators. There are particular species namely Percula clownfish. You can spot the appearance of Pacific cod in the western and eastern regions of northern Pacific. The Atlantic cod lives in the deep and cold regions of North Atlantic. Here are some interesting facts about cod fish to note:.

In , Linnaeus named the Atlantic cod Gadus morhua. Linnaeus named the non migratory and low salinity cod as Gadus callarias even though now it is called gadus morhua callarias. Cod fish is very popular in the world. It has the flaky white flesh with mild flavor. You can eat cod fish as food. Have you ever heard about cod liver oil? This type of oil is made of the cod liver. It is good for our health because the cod liver oil contains vitamin E, vitamin D and vitamin A.

It is also a good source of omega-3 fatty acids. Scord is a unique term to call the strips of young Atlantic cod fish used for cooking. The people in United Kingdom will create fish and chip by using Atlantic cod as the main ingredient. The people will never throw away the cod liver for it is a source of various nutrients. Spiracles can be found on the top of the head of the cartilaginous fish. They are used by the fish to breathe.

Due to the presence of spiracles, the cartilaginous fish can stay at the bottom of the ocean and get the oxygenated water. The skin of cartilaginous fish and bony fish is totally different. The bony fish has the flat scales. The cartilaginous fish has the tooth like scales that people call dermal denticles or placoid scales. Do you know the classification of cartilaginous fish? It is included in the kingdom animalia with the phylum Chordata.

It is included in the class of Elasmobranchii. The experts believe that the earliest shark evolved around million years ago. It was based on the shark teeth fossil. The shark species such as white sharks, megalodon and hammerheads arrived around 23 million years ago, while modern sharks were presented around 35 years ago.

Check facts about box jellyfish here. The presence of skates and rays were traced back million years ago based on the fossil record.