Articles on Fish

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Qilinyu, shown here front and top left, with its kin Entelognathus and small worm-like conodont animals swimming in the background. Dingua Yang/Inst. Vertebrate Palaeontology & Palaeoanthropology

Chew on this: we finally know how our jaws evolved

Next time you bite down on something you're eating, spare a thought for the evolutioniary leap made by an ancient fish that gave rise to our jaws.
How many species of frog are in the picture? Genetics often says ‘more than we thought’. Michael Lee (Flinders University & South Australian Museum)

The Earth’s biodiversity could be much greater than we thought

The Earth is full of many varied species from the largest mammals to the tiniest organisms. But we now think there could be ten times more species than was originally thought.
Spangled perch are one of Australia’s strongly migratory native fish. After storms in January 2015 these fish were actively travelling up a flooded road in outback Northern Territory. Jessica Brown

We can have fish and dams: here’s how

Freshwater fish are declining everywhere, in part thanks to dam-building. But we can have both.
Unlike clownfish (Nemo), Pacific blue tang fish (Dory) cannot be bred in captivity. nostri-imago/flickr

Finding Nemo – and Dory – is easy. Deciding whether they should be pets is harder

The release of the movie 'Finding Dory' comes with renewed calls to leave fish in reefs – a good idea in this case – but catching some ornamental fish can have a positive impact on reef communities.
This 119 million year old fish, Rhacolepis, is the first fossil to show a 3D preserved heart which gives us a rare window into the early evolution of one of our body’s most important organs. Dr John Maisey, American Museum of Natural History in New York

The first fossilised heart ever found in a prehistoric animal

For centuries, the fossil remains of back-boned animals were studied primarily from their hardened bones. Now palaeontologists can study the softer side of these ancient creatures.
Bleached coral can take on luminously beautiful pink and purple hues - but don’t be deceived, these corals are under stress. Justin Marshall/

In pictures: a close-up look at the Great Barrier Reef’s bleaching

The bleaching hitting the Great Barrier Reef not only harms corals. As these close-up photos show, it also deprives many other species of a home and livelihood.
The remote rivers of northern Australia could be home to untold numbers of new and threatened fish. Matthew Le Feuvre

We discovered 20 new fish in northern Australia – now we need to protect them

A score of new fish species discovered recently in northern Australia remind us how little we know about our country.
Fishermen rescued from a boat on which they were trafficked to work. Pring Samrang/Reuters

Why it’s so hard to fight fisheries crime

There are no proper laws to combat fisheries crime. As a result, a number of organisations need to join forces to stop the problem.

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