Even the most mutually-beneficial evolutionary relationship can turn sour.
The reality TV show I'm a Celebrity, Get Me Out Of Here is under fire for using non-native insects while filming in the Welsh countryside.
Estimating the cost of antibiotic resistance to economies and health-care systems is fraught with difficulty, but new research says Australia will be hit harder than we think.
Pink blood, green blood, or no blood at all – when it comes to what's inside a worm's body, the answer is more complicated – and fascinating – than you'd think.
The moment a chick hatches from its egg, maggots burrow into its skin to drink its blood, usually killing it. But scientists have found a way to stop the blood-sucking parasites.
Mediterranean groupers are not alone: they are home to a wide variety of parasites.
Mud blister worms make their homes in the shells of oysters and other shellfish, where they weaken their hosts.
In fiction and popular culture, parasitic characters appear as a metaphor for the threat and spread of disease. But they've also played for laughs.
We studied 515 million-year-old brachiopod fossils from southern China. These marine invertebrates were common in the geological past.
Antimicrobial resistance is a public health and economic disaster waiting to happen. If we do not address this threat, by 2050 more people will die from drug-resistant infections than from cancer.
The African clawed frog is a notorious invader but it also takes some parasites with it to new regions.
It's the first non-English language film to win best picture – here's hoping this is the start of something big for world cinema.
Schistosome worms infect hundreds of millions of people worldwide. Researchers have discovered how to use inexpensive drones to identify disease hotspots in remote African villages.
Mythical mistletoe can be traced back to Norse legends.
There are three classes of parasites that can cause disease in humans. Here's what you need to know.
Certain wasps and flies which lay their eggs in specific species such as aphids could be a sustainable form of pest control.
Toxoplasma already infects a third of the world's population but it's very hard to study and so treat.
Scientists have identified the world's smallest animal – for now. It could be possible smaller creatures exist that have not yet been discovered.
Reconsidering an old ecological conundrum comes up with a new perspective on migration, contact and trade in the Australia and Asia-Pacific region.
Each year 50 000 people from 89 countries, in every continent except Antarctica, die from leishmaniasis, an ancient neglected disease.