Cloudless blue skies! But not without water... When we think of the great rivers that shape our planet, names like the Amazon, the Nile...

Fluorescent coral of the genus Acropora - Photograph © Martin Colognoli For over 10 years, I have had the chance to photograph the coral...

© Martin Colognoli "Water has always fascinated me. A source of life, wonder and inspiration, it is at the heart of my research and my...

Introduction When fresh water and salt water meet, an amazing phenomenon occurs: osmosis. This natural process, already studied in...

Coral reefs are exceptional underwater ecosystems, present in many regions of the globe. They cover approximately 284,300 km², or less...

Coral reefs are often compared to underwater rainforests because of their incredible biodiversity. Although they cover less than 0.1% of...

Coral reefs, often called the “rainforests of the sea,” are essential marine ecosystems. They cover less than 0.1% of the ocean floor,...

Coral reefs, and in particular barrier reefs like the Great Barrier Reef in Australia, play a fundamental role in the health of the...

A fringing reef is a type of coral reef that develops directly along the coast, in close proximity to the shores. Unlike other types of...

Corals, key players in marine ecosystems, are marine animals classified within the phylum Cnidaria , which also includes jellyfish and...

The coral reef system is a set of interconnected marine ecosystems, composed primarily of reef-building corals (hard corals) that form...

The Great Barrier Reef , located off the north-eastern coast of Australia, is the largest coral reef in the world. This natural...

An atoll is a fascinating coral formation that emerges in the middle of the ocean. It is distinguished by its circular or ring shape,...

Coral reefs play a vital role in marine ecosystems, despite covering only a small fraction of the oceans. In addition to supporting an...

Introduction Global warming is one of the greatest threats to coral reefs worldwide. These ecosystems, so important for marine...

Introduction Corals, often called “the architects of the oceans,” are fascinating marine organisms that form reefs that are home to...

Introduction Coral reefs, the lungs of the oceans, play a vital role in the health of marine ecosystems and the survival of many species....

Introduction Coral reefs are often described as the “rainforests of the sea” due to their immense biodiversity. However, they are not...

Introduction Coral reefs face many threats, including global warming, which is causing coral bleaching. However, some coral species have...

Introduction Coral reefs are not only ecologically crucial marine ecosystems, they also play a fundamental economic role for millions of...