Shark Tails

Shark Tails

Shark Tails – Depending on the species Each shark has a tail adapted to its physiology, its surroundings, and its lifestyle; Therefore, there is a great diversity of types of tails. Each one consists of a precaudal pit and an upper and lower lobe. In some cases,...
Shark Evolution

Shark Evolution

THE EARTH BEFORE THE SHARKS Fossil evidence shows that sharks populated the planet before the dinosaurs existed, that is, more than 400 million years ago. Since the skeleton of the shark is composed of cartilage, the only thing preserved from prehistoric sharks are...
Shark Social Structure

Shark Social Structure

Social Structure of Sharks There isn’t much or reliable information about the social structures of sharks, given the complexity of studying their individual interactions and behavior. However, in recent years the relationships between fish once considered simple...
Shark Behavior

Shark Behavior

The information on the behavior of these Chondrichthyes is scarce when compared to other fish or mammals, and is because sharks hardly meet the necessary conditions for human research. Rarely they stay in the same place, and most of the time they inhabit inaccessible...
Shark Anatomy

Shark Anatomy

Shark Physical Characteristics There are more than 400 shark species in the ocean, but they all have the same basic anatomy. This astonishing anatomy masterfully designed by evolution is what sets sharks apart from other types of aquatic life including whales and...
Shark Communication

Shark Communication

Communication between animals is an issue still on research especially because of the imprecise meaning of the word “communication” in this context. But in short, it is true that some animal species use their intelligence and senses to warn, prevent and...