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Articles sur Fish

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Changing waves and currents can keep fish on the move. Jordan Casey

Oceans in motion: why some fish can’t go with the flow

Have you ever been snorkelling or scuba diving on a windy day when there are lots of waves? Did you notice how much that flow of water against your body affected your ability to swim and control your movements…
Baby salmon: TomTom not required. Tom Quinn and Richard Bell

Magnetic maps guide young salmon from river to sea

How does a young animal find its way to an unfamiliar location hundreds or thousands of kilometres from where it was born? A reasonable idea might be to find an older, experienced migrant and follow. This…
Now you see me… Ocean acidification is making things blurry for fish. Flickr/Mr. T in DC

Ocean acidification leaving fish in the dark: study

Increasing carbon dioxide in the world’s oceans could hamper fishes’ eyesight, slowing their reaction times and leaving them vulnerable to predators or unable to hunt, new research has shown. Experts say…
Air-breathing fishes such as Polypterus ornatipinnis laid foundations for modern ears. Flickr/lapradei

Now listen: air-breathing fish gave humans the ability to hear

A century-old mystery about how ancient freshwater fishes breathe has finally been put to rest, thanks to a study published today in Nature Communications by me and a team of ichthyologists. The fishes…
An predecessor to the tetrapods – the extinct lobe-finned fish Tiktaalik roseae Wikimedia Commons

These genes are made for walking – another step from fins to limbs

It’s one of the most tantalising questions in evolutionary biology: how did our aquatic ancestors first move from water onto land? Thanks to research published today in PLOS Biology, new light has been…
It’s all uphill for salmon right now. David Cheskin/PA

Shrinking wild salmon starve at sea as North Atlantic warms

It is an enduring mystery how juvenile salmon, at 12cm long and weighing perhaps only 20g, can leave a Scottish river in springtime, undertake a sojourn of thousands of kilometres around the North Atlantic…
Maria Island’s protected waters have given us insight into how species respond to warmer temperatures. Paul Benjamin

Marine reserves help fish resist climate change invaders

Southeast Australia is an ocean warming “hotspot” – a region where temperature at the ocean’s surface is increasing more rapidly than elsewhere. That means this part of Australia is like an outdoor laboratory…
Rainbowfish embryos – at only four days old – can smell predators such as goldfish. Benson Kua

The nose knows: rainbowfish embryos ‘sniff out’ predators

Rainbowfish embryos, as young as only four days after fertilisation, are able to smell potential predatory threats, a new study by Australian researchers has found. Published today, the findings show these…
Finding Entelognathus is a revelation comparable to the discovery of Archaeopteryx. Brian Choo

Extraordinary ‘missing link’ fossil fish found in China

A spectacular new “missing link” fossil has been unearthed in China. The 419 million year old armoured fish, called Entelognathus, meaning “complete jaw” solves an age-old debate in science. For palaeontologists…
Skate, or “skate”? Andrew M Griffiths

Unchecked food fraud threatens vulnerable fish

The deliberate act of falsely representing, labelling or advertising food, known as “food fraud”, is not a recent phenomenon. The deceitful adulteration of food has a long history based on the promise…
Who’s in charge here? Fish adapt to their new roles. Shinnosuke Nakayama

Following fish teach us that leaders are born, not made

In our society, not many people are lucky enough to have an ideal boss who they would want to follow faithfully for the rest of their lives. Many might even find their boss selfish and arrogant or complain…

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