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Why is the blue-ringed octopus so deadly?The blue-ringed octopus is by far the most venomous octopus.
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Why are men taller than women, on average?We don't know exactly why men are taller than women on average, but we have some genetic clues.
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How is Roman concrete still standing after 2,000 years?Roman concrete's durability comes from a combination of its ingredients and production methods.
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What's the difference between apes and monkeys?Primatologists explain how apes and monkeys differ.
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Physicists create a black hole bomb for the first timePhysicists have created a model of a black hole bomb in the lab for the first time, verifying a theory first proposed more than 50 years ago.
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Universe may revolve once every 500 billion years — and that could solve a problem that threatened to break cosmologyA slowly spinning universe could resolve a puzzle in physics known as the Hubble tension, a new model suggests.
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Student accidentally creates 'shape-recovering liquid' that's an exception to the laws of thermodynamicsA graduate student accidentally created a blend of oil, water and nickel particles that formed an unexpected shape.
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Newly 'awakened' black hole is releasing 100 times more energy than scientists have seen beforeThe quasi-periodic eruptions of X-rays from a black hole 300 million light-years away are unlike any researchers have ever seen before.
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The James Webb telescope reveals the truth about a planet that crashed into its own starScientists thought they saw a distant star swallow a planet for the first time ever. But new observations from the James Webb Space Telescope suggest something very different, but equally rare, may have happened instead.
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First baby conceived with remotely operated 'automated IVF' has been bornPerformed remotely in Mexico by engineers and embryologists in New York, an automated fertility treatment resulted in conception and, more recently, a live birth.
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Do animals have orgasms?Though research on sexual experience in nonhuman animals is limited to primates and rodents, there's reason to think that they have an "orgasm-like response" during sex.
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What's the oldest lake on Earth?The oldest lake in the world dates back about 25 million years and is also the world's deepest and most biologically diverse lake.
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Would a fallout shelter really protect you in a nuclear blast?Nuclear bunkers aren't a foolproof way to stay safe during a nuclear attack. Here's why.
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If humans could fly, how big would our wings be?Humans don't have hollow bones like birds do, so how big would our wings have to be to lift us off the ground?
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Did people report seeing UFOs before the 20th century?Are UFO sightings a 20th-century phenomena, or did people report seeing them earlier in history?
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What temperature is the moon?An astronomer describes how the moon's surface temperature changes.
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Why does Australia have so many venomous animals?Scientists explain why animals in Australia wield venom as a weapon.
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Which foods make the smelliest farts?Gastroenterologists describe the factors that go into passing gas and which foods make farts smell.
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Do we really use only 10% of our brains?How much of the brain does each person use throughout their day?
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Why do clouds float?Do the clusters of water and ice particles that make up clouds really float in the sky?
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In rare attack, 30 orcas 'badly wounded' 2 adult gray whales in CaliforniaA pod of about 30 orcas attacked and "badly wounded" two adult gray whales off the coast of California, according to drone footage.
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The smallest and largest creatures make up most of Earth's biomass, surprising study findsContrary to a finding from the 1960s, a new study reveals that the bulk of Earth's biomass comes from giant and tiny organisms.
