A pod of narwhals (Monodon monoceros) in central Baffin Bay. Narwhals are the most vulnerable animals to increased ship traffic in the Arctic Ocean.
Kristin Laidre/University of Washington
Climate change is shrinking Arctic sea ice and opening the region to ship traffic. Whales, seals and other marine mammals could be at risk unless nations adopt rules to protect them.
Blue whales are the largest creatures to have ever lived on Earth.
Shutterstock
From the oil that makes your petrol, to car parts, to the groceries and other things in your weekly shop, retail consumerism is driving a boom in the amount of noise in the world’s oceans.
We know that lots of animals, maybe all animals, sleep. Cats, dogs, even worms and jellyfish sleep. But we still don’t know exactly why they started sleeping.
Marcella Cheng/The Conversation
Pond snails use things like rocks or the side of their aquarium as their bed, attaching themselves while they sleep. This might not seem very relaxing but their shells do hang away from their body.
Marine mammals are often referred to as sentinels of the ocean and research on whales and dolphins in particular contributes important knowledge about the health of our seas.
Navin75/Flickr, Australian Marine Conservation Society, ANU
In this episode of Change Agents, Andrew Dodd speaks with Darren Kindleysides and Don Rothwell on how Australia won a case against Japan's whaling activities at the International Court of Justice.
Ancient whales, such as Janjucetus illustrated here, used their sharp teeth to capture and process their prey.
Carl Buell