Marine life
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Focus
Cosmos Q&A: Saving our fishes
There’s much to learn about life in inland waterways.
Australian freshwater fishes have a tough time of it. The thing they most need – water – is regularly in short supply...
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Yes, megalodons were really big
Researchers confirm gigantism of the extinct species.
The megalodon (Otodus megalodon) has a long-standing reputation as one of the largest sharks to have roamed the ocean...
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Heading south? You’ve changed your tune
Acoustic signatures linked to blue whale migration.
Changes in whale song may predict planned migration, a new US study suggests. Researchers from Stanford University...
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Dives of distinction
Cuvier’s beaked whales continue to surprise.
Cuvier’s beaked whales (Ziphius cavirostris) are continuing to prove why they’re considered the superstars of the div...
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Conversation
A new genetic tool to help classify coral
To conserve our reefs you first have to understand them.
By Tom Bridge, Andrew Baird and Peter Cowman (James Cook University) and Andrea Quattrini (Smithsonian Institution) ...
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Citizen Science
Keeping track of moving marine life
Let Redmap know if you see something out of place.
Each week Cosmos takes a look at projects and news about citizen science in Australia. This week, we talk to Gretta P...
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When sea anemones behave like plants
If they overeat, they put on tentacles.
The number of tentacles, or arms, that a sea anemone has depends on how much food it has eaten, researchers have disc...
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More insights into the complexity of coral
Studies look closely at impacts of acidification and diversity.
Scientists are moving closer to understanding the complexity of coral reefs and their response to different environme...
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Coral reefs are trying to recover
Report reveals some hope for the Great Barrier Reef.
Coral cover has shown small signs of recovery on two thirds of reefs surveyed along the Great Barrier Reef – but it’s...
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Life in the sediment is very low energy
It even raises questions about what constitutes life.
Micro-organisms buried in ocean sediment can survive on less energy than has ever been shown to support any form of l...
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Angelfish are clever breeders
Hybridisation isn’t limited to closely related species.
Natural hybridisation isn’t uncommon among marine life. Two different species often mate and produce hybrid offspring...
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Partner Content
Migration: impact on whales' health
It's depleted on their return from annual migration.
Whale-watching season is usually a delight for scores of whale watchers along the east coast of Australia. For scient...