Eau solide et eau liquide - Photographie © Martin Colognoli Water is an essential resource for life on Earth, but its origin remains a...

Divers on a coral protection course - Photograph © Martin Colognoli Coral reefs are among the richest and most threatened ecosystems on...

Official poster for UNOC 2025 in Nice - Credit: United Nations The next United Nations Ocean Conference (UNOC) will be held in Nice in...

Calcareous structure of a coral : Turbinaria sp - Photography © Martin Colognoli Since the depths of geological time, a small,...

Acropora millepora - Photography © Martin Colognoli A glimmer of hope… misunderstood! In the waters of French Polynesia, scientists...

Marina and Nacho look after the corals on the nursery structure before they are transplanted onto the natural substrate - Photograph ©...

“Discover the importance of corals in the Mediterranean, the threats they face and the conservation initiatives in place.

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,...