7 reasons why sea sponges are the coolest, by Greenpeace UK

Sea sponges. They’re not exactly the cuddliest of creatures. They don’t have eyes, limbs, ears, a mouth or even a brain. They can’t move and some of them look a bit like Wotsits. Often branded…

Coral reef - Wikipedia

Frontiers Global Drivers on Southern Ocean Ecosystems: Changing Physical Environments and Anthropogenic Pressures in an Earth System

First Photos of New Coral Reef System Released

Why Sponges are Underrated - Ocean Conservancy

Coral reef - Wikipedia

Coral reef - Wikipedia

Could corals in the Middle East save the world's dying reefs?

What's more mysterious than the deep ocean? - Greenpeace International

5 things you need to know about the Reef - Greenpeace International

Could corals in the Middle East save the world's dying reefs?

Sponges are the ocean's natural DNA collectors

The unseen man-made 'tracks' on the deep ocean floor

Bleached sea sponges found off New Zealand for the first time - BBC Newsround