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Around 15 percent of the world's population suffers from tinnitus, a condition which causes someone to hear a sound (such as ringing or buzzing) without any external source.

In an unexpected twist, a non-venomous spider has been caught poisoning its victims by lacing its silk wrappings with vomited toxins.

The human body is a machine whose many parts - from the microscopic details of our cells to our limbs, eyes, liver and brain - have been assembled in fits and starts over the four billion years of our history.

The earlier Parkinson's disease is spotted, the better - for patients, their loved ones, and scientists working toward treatments or a cure.

We spend a third of our lives asleep.

A belt of swirly, stripey rock in the northeast reaches of Canada looks like it contains some of the oldest minerals ever found on our planet's surface.

Mice with two fathers and no mother have now had offspring of their own.

Scientists have caught ancient parasitic fungi in the act of bursting from insect hosts, in dramatic scenes frozen in amber.

We know caffeine is good for an alertness boost first thing in the morning or during an afternoon lull, but researchers have also linked the compound to healthy aging - and a new study takes a close look at some of the cellular mechanisms responsible ...

When most people hear the word uranium, they think of mushroom clouds, Cold War standoffs or the glowing green rods from science fiction(kasezo/iStock But uranium isn't just fuel for apocalyptic fears.