Genetic factors are thought to play a major role in the development of autism – but for decades what they are has proven elusive. Now scientists are starting to uncover clues.

An allergic reaction happens when your immune system overreacts to something that should be harmless. Whether that happens ...

For a group that makes up just 0.4 percent of the world’s population, identical twins have enthralled moviegoers.

The trans-Neptunian object Altjira, 44 times farther from the Sun than Earth is, could be the second known trinary, ...

Easter weekend will be extra special for a North Texas teacher and her husband. The couple received an unexpected extra ...

It was not until 1977, when a couple of psychiatrists carried out a landmark study demonstrating that autism often runs in identical twins ... yet this very concept remains deeply divisive ...

The Solemnity of the Immaculate Conception is a time to celebrate the great joy of God’s gift to humanity in Mary, and to recognize with greater clarity, the truth that each and every human ...

The twin-engine aircraft crashed shortly after departing from Westchester County Airport, en route to Columbia County Airport.