Fish

Fish are aquatic vertebrates that are covered with scales and breathe through gills without needing to leave the water. Fish can be found in saltwater, freshwater, warm waters or cold waters. In this section, you'll learn all about aquarium and wild fish.

FishGreat Hammerhead Shark: Habitat and Characteristics

The great hammerhead shark is the largest of the 3 species of hammerhead sharks. Although the characteristic "T" shaped head…

FishIncredible: Stranded Dolphin Saved by a Dog

Each year, large numbers of healthy dolphins can get trapped on the seashore. This occurs due to factors such as…

FishThe 10 Most Dangerous Animals in the Mediterranean Sea

Despite being a small inland sea, the one that surrounds certain coasts of the Iberian Peninsula isn't exempt from threats.…

FishDifferent Types of Water for Your Fish Tank

Aquarophilia is an interesting hobby that has gained many followers and consists of breeding fish and other organisms in a…

FishLearn All About Fish With Lungs: Lungfish!

Believe it or not, lungfish do exist and, as their name suggests, they're fish with lungs! Although they're not like…

Fish5 Types of Fish Tail Fin

The caudal fin is one of the many fins that a marine animal has, but it's the one that draws our attention the most, perhaps due to its movement, s...

FishLearn About Flying Fish

When we think about animals that fly, birds are the first ones that come to our minds. However, have you ever heard about flying fish? As their nam...

Fish5 Types of Fish Fins

In order to be able to move and keep their balance in water, fish really need their fins. Of course, they’re not all the same. It all depends on th...

FishDescription and Purpose of the Swim Bladder in Fish

The swim bladder in fish allows them to move according to their needs whether they inhabit the sea, rivers, or…

FishCharacteristics of the Eel - Should We Be Afraid Of It?

The eel is quite easy to identify because it looks like a swimming snake that hangs out in rivers and…

FishThe Prickly Shark: Characteristics and Habitat

The prickly shark (Echinorhinus cookei) belongs to the family Echinorhinidae, along with the bramble shark (Echinorhinus brucus). There's very litt...

FishLepidosiren Paradoxa: A Fish with Lungs

Known by many names —South American lungfish, American mud-fish, piramboia, pirarucu-bóia, caramuru, and scaly salamander fish— Lepidosiren paradox...

FishFind Out All You Need to Know about Blowfish

Famous in Japanese gastronomy, known for their ability to inflate in the face of danger; they're one of the many…

FishHow Water Pollution Affects Fish

The planet's aquatic ecosystems are seriously threatened by water pollution caused by human activity, and, unfortunately, this seriously affects fi...

FishMoray Eels and Their Incredible Pharyngeal Jaws

All the species of the Muraenidae family are known as moray eels. They all share the appearance of an eel,…

FishAre There Scaleless Fish?

It may sound strange, but not all fish have scales. Fish are part of a very diverse group of vertebrates, as we can classify them according to thei...

FishThe Rainbow Trout, a Multicolored Salmonidae

The rainbow trout is a multicolored Salmonidae spread throughout practically all the waters of the world. Its common name comes…

FishIs it True that Sharks Don't Get Sick?

There are many reasons why people are fascinated by sharks. However, not everything people tend to believe about these animals…

FishThe Secret of Glow-in-the-Dark Sharks

Bioluminescence, the secret of glow-in-the-dark sharks, is a common phenomenon in marine species. It's a defense strategy mainly. Relatively recent...

FishHow Do Ocean Currents Affect Marine Fauna?

In certain parts of the oceans, there are high numbers and a great variety of animals. This is a product…

FishThe Lionfish Invasion: The Mediterranean's New Resident

The lionfish (Pterois miles) belongs to the genus of venomous fish Pterois and is native to the Indio-Pacific. You may…