Are 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 their skeleton, jaw,…
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.
The 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…
Is 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…
The 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…
How 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…
The 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…
Animals that Live in the Deep Sea
The ocean is the least explored place on the planet, and in its depths is a wide variety of species…
The Seahorse: Hippocampus of the Sea
The name Hippocampus comes from two Greek terms. "Hippos" means horse and "kampos" means sea monster. These combine to form…
What Is Dolphin Training Like?
In marine parks around the world, animal shows are the main attraction. What's behind these shows? What is dolphin training…
The Current Situation of Freshwater Fish in Spain
Although you can confuse saltwater fish with freshwater fish at first glance, they’re very different species. Their bodies have different…
Winter The Dolphin: The Dolphin that Lost Her Fin
Not all animal centers exhibit animals or keep their inhabitants imprisoned. In fact, there are some recovery centers that house…
The Ocean Sunfish (Mola Mola): Heaviest Fish in the World
The ocean sunfish holds the title of the heaviest known bony fish in the world. How did it get this…
The Most Common Fish Diseases
Keeping an aquarium is no easy task, and if you're thinking of getting one, there are few things you should learn about first. One of these is what the most…
How to Choose Plants for Your Aquarium
Some people choose artificial plants for their aquarium because they don't require any care. However, natural plants have many benefits…
Unusual Fish: The Deep Sea Chimera
The deep-sea chimera is different in many aspects to other fish. This strange creature is found throughout the world, from 320…
7 Different Fish that Live in Warm Water
Perhaps you've experimented with a coldwater aquarium and now you want to try something new. Fish that live in warm…
The Salmon Run - An Amazing Journey
It's common for wild animals to migrate and among the many species who do so, the salmon run is one…
6 Interesting Facts About Fish
Whoever said fish were boring animals? In this article, we'll tell you 6 interesting facts about fish that might just…
Setting Up an Aquarium for the First Time
Setting up an aquarium for the first time doesn't just mean pouring a load of water and gravel into a…
Water Quality and the Survival of Goldfish
The goldfish is one of the easiest pets to cultivate, given its ability to reproduce, its adaptability to a variety…