‘This wave of emigration will affect the development of Irish society for decades to come, just the same as every other exodus during the past four centuries.’ Photograph: Cyril Byrne/The Irish Times

Ireland is a small country with a huge diaspora. It is estimated that more than 70 million people across the globe claim some degree of Irish ancestry(...)

Research published in the journal Nature Communications shows if you have one or two certain gene variants life expectancy reduces by between one and two years.

Scientists have discovered genes that can knock one to three years off your lifespan. These gene variants are also very common with two thirds of us c(...)

A dog IQ test has been developed by scientists who say it could pave the way for breakthroughs in our understanding of the link between intelligence and health. Photograph: Angela Driscoll/Kinloch sheepdogs/PA Wire

A dog IQ test has been developed by scientists who say it could pave the way for breakthroughs in our understanding of the link between intelligence a(...)

Donnie Campbell and Andrew Murray high in the Namib Dunes. Photograph: Johnny Graham, DigitalPict Photography

There is no doubt that ultra-running medic Andrew Murray is up for a challenge. The doctor has completed an ultra-marathon on each continent in seven (...)

Sound and fury: why have we surrendered our right not to have to listen to muzak in shopping centres, restaurants and other public places? Photograph: iStockphoto

Like a lead-booted diver, I trudge around the shopping centre trying to escape the cosh of muzak. Integral to the centre’s architectonics, muzak pollu(...)

Climate activists demonstrate with red umbrellas in Paris on Saturday. Photograph: Thibault Camus/PA

We will never know how many people would have participated in the great march for the climate on November 30th, the day the COP21 conference started, (...)

Some 40 Irish people from the Stop Climate Chaos coalition (above) were allowed to continue to Paris after initially being stopped at Cherbourg on Thursday night.

Just as French foreign minister Laurent Fabius was explaining the agreement reached at the COP21 climate conference on Saturday, thousands of proteste(...)

People gathered at the Famine Memorial on Custom House Quay in solidarity with the refugees and migrants around Europe. Photograph: Cyril Byrne/The Irish Times

Jean-Claude Juncker is right: “there is a reason the number of O’Neills and Murphys living in the US exceeds the number in Ireland”, and you could lis(...)

New research has found the lower the degree of genetic similarity in a couple, the more likely it is their children will be taller and quicker thinkers

If you want to have children who are tall and smart, then be prepared to travel further to find a partner. New research has found the lower the degree(...)

Dr Elaine Dunleavy of NUI Galway: “I am trying to find out the genes that are important for fertility in males”

A Galway-based researcher who studies the genetics of fruit flies as a way to understand human health has been awarded the President of Ireland Youn(...)