Tear gas should be banned, researchers find; here's why

The use of tear gas—particularly CS gas—as a riot control agent, cannot be reconciled with respect for fundamental human rights and should therefore be banned entirely in international law, the University of Toronto's ...

Bird and reptile tears aren't so different from human tears

Bird and reptile tears aren't so unlike our own, shows a new study in Frontiers in Veterinary Science. But the differences could provide insights into better ophthalmic treatments for humans and animals, as well as a clues ...

Are crowd-control weapons dangerous? Very, says expert

Protests and demonstrations, like those erupting after the death of George Floyd, a black man who was killed when a white police officer in Minneapolis pressed his knee into Floyd's neck for nearly nine minutes, are a daily ...

What is tear gas?

In the past week, there have been reports of tear gas being used to control crowds protesting the death of George Floyd, so questions have arisen on the dangers of crowd control chemicals.

Baby's tears and mom's libido

A substance in young mouse tears makes female mice more likely to reject male sexual advances. This research is part of ongoing efforts at the University of Tokyo to understand how animals communicate using chemicals called ...

Video: Why do onions make you cry?

Common in cuisine all around the globe, onions are renowned for their ability to make us all look like cry babies. In Reactions' latest video, we get to the bottom of this teary phenomenon and reveal exactly what chemical ...

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