Complex behaviour such as regional accents and cultural food preferences in whales and dolphins seems to be linked to brain size.
Fossils of a whale thought to be found only in southern waters have been discovered at two sites in the northern hemisphere.
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.
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 were neither gentle, nor giants: they were smaller than those of today and judging from their teeth, a lot meaner.
A new study shows that the way humpback whales choose their habitats is affected by humans.
There are plenty of mammals that have adapted to life in water, some more than others. That meant they also had to adapt the way they feed.
More than 400 whales have died on a beach in New Zealand.
Japan is once again allegedly killing whales in Antarctica. But after taking Japan to international court in 2014, there's not much Australia can do.
Size doesn't always matter when it comes to the pitch of your voice, especially if you're an aquatic mammal.
Songs of marine animals can help us discover new populations.
Dolphin-watching tourism has pros and cons — so what should you think about next time you head out?
The largest animals on the planet - the baleen whales - prey on some of the smallest. But how did their teeth evolve into the filters they use today?
Ships in Australian waters are getting bigger and more numerous all the time. We need a plan to help them avoid crashing into whales and other large sea creatures.
Poor management of the oceans, including the killing of crucial marine predators, could result in more greenhouse gasses.
The increasing use of the sea for human activities has resulted in a dramatic rise in noise levels.
We tend to think of the oceans as quiet, when in fact they're anything but. Noise is the "forgotten pollutant", but the good news is that unlike many other pollutants it can be switched off if we try.
Humpback whales have been spotted fending off killer whales from attacking other species. But this kind of interspecies altruism raises an evolutionary conundrum.
What are the oldest living animals on the planet?
Understanding this will boost conservation efforts.