A tiger has undertaken the longest walk ever recorded in India, travelling some 1,300km (807 miles) in five months.
A critical 12 months in the battle against rising temperatures begins in Madrid this week, as UN delegates gather for key talks.
Almost a quarter of young people are so dependent on their smartphones that it becomes like an addiction, suggests research by psychiatrists.
A major trial of an immunotherapy drug has shown it can be effective in some men with advanced prostate cancer.
Atmospheric concentrations of carbon dioxide and other greenhouse gases once again reached new highs in 2018.
A measles outbreak in the Pacific nation of Samoa has killed 22 people, nearly all children under five.
Four in five 11- to 17-year-olds around the world are not taking enough physical exercise, according to the first such analysis.
A Canadian teenager has developed a vaping-related lung injury similar to "popcorn lung", his doctors say.
A third of tropical African plants are on the path to extinction, according to a new assessment.
The number of children being admitted to hospital in England with a severe allergic reaction has risen every year for the past five years.
The biggest and most damaging hurricanes are now three times more frequent than they were 100 years ago, say researchers.
Its physical benefits for flexibility and balance, as well as its spiritual connection, mean it's practised by millions across the world.
Mountaineering in some parts of the world is becoming riskier because of climate change, climbing experts and scientists warn.
Scientists have pinpointed the homeland of all humans alive today to a region south of the Zambesi River.
World-leading research is helping scientists find new ways of trying to help younger people who have had a stroke get back to work.
The 55th death anniversary of the champion of democracy and one of the greatest leaders of undivided India, Hussain Shaheed Suhrawardy was observed in the country on Dec 5 in a befitting manner.