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Will Antarctica ever be habitable?As global temperatures rise, the ecology of Antarctica is already changing, but Earth's climate would have to change drastically before the continent could support agriculture and permanent settlers.
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Which animal has the largest brain relative to its body size?Although bigger animals usually have bigger brains, this isn't a perfect measure of their intelligence.
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Why is there so much biodiversity in the tropics?Ecologists say there are three explanations for the abundance of species in the tropics.
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Does drinking coffee help you live longer?Habitual coffee consumption may lower your risk of heart disease and death in a given time period, but the jury is still out on whether it promotes longevity.
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Is Nazi gold real?Nazi soldiers looted numerous valuable items and tons of gold, but the chances of locating buried treasure are tiny.
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The 6th mass extinction hasn’t begun yet, study claims, but Earth is barreling toward itEarth has experienced five mass extinction events over its 4.5 billion-year history. A sixth mass extinction is underway as a result of human-driven climate change.
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Do pigs sweat?Pigs have sweat glands, but regulate their body temperature in other ways.
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How many people can Earth support?The number of people the planet can sustain depends on both the natural constraints of our environment and human choices.
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Why does ancient Egypt's distinctive art style make everything look flat?Egyptian art is easily recognizable, but many cultures used similar approaches to represent people and objects.
