A Tyrannosaurus rex skull at the National Science Museum in Tokyo. Tyrannosaurus’s bite was nearly three times stronger than a crocodile’s. File photograph:  Toshifumi Kitamura/AFP/Getty Images

Tyrannosaurus rex was a teenage mother and velociraptors are “not that smart after all”, according to the latest developments in palaeontology. “We’r(...)

There are some 48,000 people living with dementia in Ireland, with Alzheimer’s the cause in most patients

There has been a cautious response to claims that a drug treatment given to patients in the early stages of Alzheimer’s disease has been able to slo(...)

Professor Hugh Brady will become the third Irish president of a Russell Group university when he joins Bristol. Photograph: Bryan O’Brien

Former UCD president Dr Hugh Brady has been appointed to lead the University of Bristol, ranked among the top 10 universities in the UK.Dr Brady, who (...)

Ballymore Eustace water treatment plant: decades of research says that fluoride at low concentrations has no ill-effects on human health. Photograph: Brian Lawless/PA

Anti-fluoride campaigners say that our water is being poisoned by a toxic and dangerous chemical. Ignorant or downright scheming scientists and jou(...)

Dinner time: a peregrine with its prey. Illustration: Michael Viney

The wind above the cliffs of Dubhoileán Mór was dishevelling even for a peregrine, tugging so fiercely at the thatch of his wings that the usual trim (...)

An artist’s rendering shows the newly discovered feathered dinosaur, Changyuraptor yangi, in this image released on July 15, 2014, courtesy of the Natural History Museum (NHM)’s Dinosaur Institute. Photograph. S. Abramowicz/Dinosaur Institute/NHM/Handout via Reuters

The discovery of the fossilised remains of a creature that looks a little like a giant beak-less chicken has led scientists to a striking hypothesis: (...)

An artistic recreation  reconstruction of Tamisiocaris borealis. Credit: Bob Nicholls/Bristol University  An artistic recreation reconstruction of Tamisiocaris borealis. Credit: Bob Nicholls/Bristol University

Savage predator or gentle vegetarian? For years an ancient shrimp-like creature that lived 500 million years ago had a fearsome reputation as a(...)

 According to Denis Henshaw, a retired professor of human radiation effects at the University of Bristol, a study carried out in the UK into overground cables carried by pylons concluded that the costs of undergrounding more than matched the health costs involved. Photograph: David Sleator

The health hazards connected with overground cables justify the costs of having them buried underground, a public meeting heard last night.Denis Hensh(...)

Ireland’s hopes of doing well at Henley Royal Regatta this year have been dented by the draw. None of the five Irish crews have been “selected” (seede(...)

The majority of mothers associated with the study – 70 per cent — followed regular medical advice and had drunk no alcohol during pregnancy. Photograph: Eric Luke

Moderate drinking by pregnant women, defined as three to seven glasses of alcohol a week, does not harm the development of their unborn babies, accor(...)