Articles on Fish

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The program can work well for polygamous species such as gorillas. Mary Ann McDonald/shutterstock.com

Swingers’ hookup program can find the right match for endangered species

Computer dating for animals? Finding the right matchup - using DNA rather than personality questionnaires - could help select the best partnerships for captive breeding programs.
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/coralwatch.org

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.

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