Some vertebrates do not need feathers or hair on their bodies to keep warm. They are ectothermic, or “cold-blooded”. This means that their internal temperature is identical to that of…
Fish Science
Fish reproduce in many ways, depending on the species. Watching fish reproduce is one of the most fascinating things about aquaristics because there are so many forms of reproduction in…
The time when humans considered animals as machines without brains or feelings is not yet completely over: some unfounded ideas, such as that fish have no memory (or even no…
Generally speaking, we could think that fishes go to “sleep” once the night falls, these last ones having no eyelids, they cannot really close their eyes. So what do they…
The yellow belly turtle is a freshwater turtle from North America. Its scientific name is trachemys scripta. This species can measure up to 30 centimeters for the female, and 20…
On some subjects, it is so much more comfortable to be an atheist. Wondering how many angels are capable of dancing on the head of a pin, or worse, whether…
Snails are often a source of concern for aquarium owners because their population is difficult to control: they appear for no apparent reason and sometimes reproduce without being able to…
Most fish have scales. Most of them, because some of them are without scales! However, we do not know to date of any fish with fur. Are there fish…
The destiny of a fish is simple: to eat and be eaten. It reproduces when the season comes, and makes us pretty little tadpoles, which will have exactly the same…
Octopuses have gills and therefore depend on water for the exchange of oxygen and carbon dioxide. The gills collapse on land due to lack of buoyancy. Octopuses have three hearts.…