Articles on Worms

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Giardia is an example of a parasite you don’t want to catch. Symptoms can include diarrhoea, abdominal cramps, fatigue, weakness and weight loss. From shutterstock.com

What are parasites and how do they make us sick?

There are three classes of parasites that can cause disease in humans. Here's what you need to know.
Leeches suck blood because it is a very good food for them. Some leeches only need to feed once a year. Pixabay

Curious Kids: why do leeches suck our blood?

The short answer is that leeches need blood to grow and reproduce. But it's in their interests to do it carefully, without causing too much pain, and in spots that are hard to find.
The “hammerhead” of Diversibipalium multilineatum. This species can reach 40 centimeters (16 inches) in length. Pierre Gros

Yes, giant predatory worms really are invading France

Several giant terrestrial Plathelminth species have invaded France and its overseas territories, threatening biodiversity. Thanks to participatory science, the invasion is finally recognized.
Worms do have something in their mouth that they can poke out, like a tongue. It is called a stylet. Flickr/DJ SINGH

Curious Kids: Do worms have tongues?

The short answer is no. But worms can use different parts of their body to do some of the jobs that our tongues do - like tasting and crushing food.
Threadworm infection is common but it’s often asymptomatic. Ayaka Darkly/Flickr

Health check: the low-down on ‘worms’ and how to get rid of them

Intestinal worms (or helminths) are multicellular parasites that live inside the gut. When mature, they can generally be seen with the naked eye. In developing countries with poor sanitation, the most…
Parasites can infest any part of the body that has an opening to the outside world. SBS

Life on Us: a close-up look at the bugs that call us home

Many microscopic bugs and bacteria live on our skin and within our various nooks and crannies. Almost anywhere on (or even within) the human body can be home to these enterprising bugs. Bugs affect us…
These little worms are very powerful model organisms, revealing important lessons about human biology. Niharb

Animals in research: C. elegans (roundworm)

Our series, Animals in Research, profiles the top organisms used for science experimentation. Here, we look at Caenorhabditis elegans – a roundworm. When you think of a worm, what do you see? For some…

Roundworms ‘talk’ with chemicals

A universal language employed by nematodes (or roundworms) has been discovered; a form of communication never seen before…

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