Leeches suck blood because it is a very good food for them. Some leeches only need to feed once a year.
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 definition of “trolling” has changed a lot over the last 15 years.
Some people still think "trolling" refers to harmless fun. If we want to reduce abusive online behaviour, let's start by getting our definitions right.
Teacher quality is key in getting a good education.
Teacher preparation has been identified as a key factor in the quality of education. To improve the quality of the VET sector, we need to ensure teachers and trainers are qualified to teach.
Vocational education and training can help increase workforce participation by offering opportunities to disadvantaged groups, including women and people from rural communities.
VET needs a new set of priorities and operating principles that are fit for the future.
Men outnumber women in top-paying academic jobs and university leadership.
Without affirmative action through gender quotas and targets, we will have another 30 years of glacial progress on gender equity in academia.
Le fromage n'est pas mauvais à la santé, à condition de bien le consommer.
Le fromage est à la fête dans l’Hexagone : les Français en consomment régulièrement, et en quantité. Graisses, calories : cette passion est-elle néfaste pour leur santé ? Non, affirment les experts.
Cheese contains saturated fats, but we don’t actually know if that’s what clogs our arteries.
Good news for cheese-lovers: all five experts said no.
Timor-Leste returns to the polls on Saturday to elect a parliament for the second time in the past year.
Timor-Leste's vibrant democracy is seen as a bright light in a troubled region, but political instability could threaten the progress it has made.
Facebook CEO Mark Zuckerberg announced Facebook Dating during his keynote address at Facebook’s F8 developer conference.
Despite the claims of online dating services, there is little scientific evidence that using self-reported data for matchmaking can lead to long-term compatibility.
In Season Two, Offred (Elisabeth Moss) reclaims the identity stripped from her by GIlead.
In the much awaited second season of the TV series, Offred is more openly defiant than she was in Margaret Atwood's novel. Still, the first two episodes remain true to the themes of Atwood's book.
Not so “ladylike” – the netball rivalry between Australian and New Zealand will continue at the 2018 Commonwealth Games.
Commonwealth Games netball is an intensely physical and competitive affair. It's a far cry from netball's roots – the game was designed to shape women into model middle-class citizens.
Kebenaran yang pahit: Anda mungkin terlihat lebih menarik dalam kelompok daripada Anda sendiri.
Keampuhan efek pemandu sorak paling bagus dijelaskan dengan menilik bagaimana otak Anda bekerja. Manusia cenderung tidak memproses setiap detail individual yang mereka tangkap dalam lingkungan mereka.
Harsh truth: you probably look more attractive in a group than on your own.
The cheerleader effect describes the phenomenon that you appear more attractive in a group than solo - and it works for men as well as women.
The “feeling” of hitting a well-timed tennis shot is lost in exergames.
Exergames should be used to replace sedentary video games, not traditional physical education.
Trolls tend to downplay the impact of their abusive online behaviour on their victims and seem to relish the mayhem they cause. Let’s use this to help them lift their game.
Trolls tend to know the impact they'll have, but don't seem to care. So, how do we use our new findings to help stop this seemingly pointless, harmful behaviour?
The Murray-Darling Basin is an incredibly complex ecological system.
A recent report argues more water is needed to resurrect the Murray-Darling Basin. But simply increasing river flow alone could actually harm the Basin.
Central Queensland University and James Cook University are part of the Townsville City Deal signed by three tiers of government in December 2016.
Universities can lead the way in creating opportunities for the economic development of regional cities and outer metropolitan areas under new City Deals.
A controversial editorial has questioned whether saturated fats really clog up your arteries and put you at risk of heart disease. But can it really overturn decades of research?
We need to eat a healthy diet, do some exercise and avoid stress rather than blame saturated fat for heart disease, says a recent editorial. But does the evidence stack up?
Women dressed as handmaids promoting the TV series The Handmaid’s Tale.
Brian Snyder, Reuters
With a new TV series based on the novel - and its bleak vision of women's rights - The Handmaid's Tale is riding a new wave of popularity.
Hazelwood in happier times.
Centre for Gippsland Studies
Hazelwood power station will this week fall silent after a half-century during which it went from a beacon of progress to an emblem of fossil fuel pollution.