Which animals sing? By Emma Bryce published 10 October 21 It's often assumed that birds are the only animals that sing. But these other divas of the animal kingdom prove otherwise.
What's the chattiest animal? By Emma Bryce published 3 July 21 Some animals lead quiet lives, while others prefer constant chatter. Why do some animals vocalize more than others, and what are they saying?
Do animals hug each other? By Emma Bryce published 29 May 21 Comfort, consolation and conflict avoidance are just some of the reasons animals embrace.
Was Manhattan really sold for $24 worth of beads and trinkets? By Emma Bryce published 4 April 21 In 1626, native people purportedly sold Manhattan to the Dutch for a pittance. But there are problems with this story that we shouldn't overlook.
How do we turn oil into plastic? By Emma Bryce published 18 January 21 Here's how crude oil becomes plastic.
What's the biggest group of animals ever recorded on Earth? By Emma Bryce published 19 December 20 For these gregarious animals, 'alone time' is a fantasy.
What's the first species humans drove to extinction? By Emma Bryce published 10 October 20 Which species died out first because of humans?
What would happen to Earth if humans went extinct? By Emma Bryce published 16 August 20 Lacking human oversight, glitches in oil refineries and nuclear plants could lead to fires, nuclear explosions and fallout.
What could drive humans to extinction? By Emma Bryce published 25 July 20 Pandemics, climate change, artificial intelligence: these are just some of the wide-ranging threats to humanity's survival. But they all have one factor in common...
Why was whaling so big in the 19th century? By Emma Bryce published 22 February 20 For centuries, we plundered the ocean's depths, hauling up whales by the thousands. But what was the purpose of this dangerous and destructive industry?
What's the difference between race and ethnicity? By Emma Bryce published 8 February 20 This question reveals something much deeper about the ways we understand — and misunderstand — race.
How Big Can Lightning Get? By Emma Bryce published 14 December 19 How big can lightning get: Two miles long? Twenty? Fifty? Think again.
How Many Calories Can the Brain Burn by Thinking? By Emma Bryce published 9 November 19 Our brains are ravenous, guzzling up to a quarter of the body's energy. So thinking really hard should be an easy way to burn more calories — right?
Why do pigeons bob their heads? By Emma Bryce published 20 October 19 Head-bobbing might make pigeons look ridiculous, but there's a practical purpose behind this very strange display.
Who Owns the Arctic? By Emma Bryce published 13 October 19 Several countries are launching claims to vast swathes of the Arctic seabed. But what does that mean for political and environmental stability in the region?
How Many Humans Could the Moon Support? By Emma Bryce published 28 September 19 How many people could fit on the moon? Answering that may require asking other questions — about lunar survival.
What Was It Like to Be an Executioner in the Middle Ages? By Emma Bryce published 24 August 19 The image of the hooded executioner is iconic, but it tells us only a small part of the story.
Why Is There So Much Oil in the Arctic? By Emma Bryce published 3 August 19 Beneath the Arctic lie billions of barrels of oil. But as the international energy race intensifies, we wonder, how did all that oil get there in the first place?
What Are the Alternatives to Animal Testing? By Emma Bryce published 4 May 19 We're making great strides in developing alternatives, but here's why it's still necessary to test on animals.
Why Do Our Fingernails Keep Growing Until the Day We Die? By Emma Bryce published 20 April 19 You may give them little thought beyond when to trim them or which nail color to apply. But the humble nail laid the groundwork for our evolution into the humans we are today.
Why Do Babies Babble? By Emma Bryce published 30 March 19 It's not nearly as nonsensical as it may seem.
What Is the Toothiest Animal on Earth? By Emma Bryce published 17 March 19 How many teeth can one mouth hold? You may be surprised.
