Latest discovery ·
Scallops: there is a mirror inside the eye
Tiny eyes along the mantle hide an unusual optical solution: a curved surface reflects incoming light towards the retinas.
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The world still has a few surprises. Unusual facts, with their sources in plain sight.
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Narwhal: that long spiral is a tooth
The Arctic’s most famous tusk grows from the upper jaw: its anatomy is clear, while its functions raise further questions.
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Axolotl: those feathery tufts are gills, even in adulthood
This salamander retains juvenile features and remains aquatic: the feathery structures beside its head offer a clue to its development.
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Platypus: a bill that finds clues the eyes cannot see
A platypus closes its eyes while searching underwater: its bill gathers electrical and mechanical information about the small animals it eats.
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Why snow crystals grow in six directions
The structure of ice helps explain the symmetry; temperature and humidity influence the pattern as a crystal grows during its journey.
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Fennec fox: those ears have two jobs
In the desert, this small fox’s large ears help it find food and release heat. An unusual shape can have several uses.
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A barn owl’s neck is not a hinge
A head that seems to look almost everywhere relies on coordinated movements: feathers hide an important part of the mechanism.
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The elephant’s trunk: precision without a single bone
An elephant’s nose is also a tool for exploring: muscles and sensitivity allow powerful movements alongside surprisingly delicate ones.
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A giraffe’s neck: longer, not more crowded
Giraffes have seven neck vertebrae too: counting the parts and measuring them are different ways to understand a body.
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Clouds are not made of visible water vapour
Water vapour is invisible. The visible part of a cloud contains tiny water droplets, ice crystals or a mixture of both.
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A rainbow is a circle: we usually see only part of it
Sunlight, droplets and our viewing position produce the arc. The ground often hides the rest of this surprising optical phenomenon.
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A blue sky is a journey made by light
Air changes the direction of some sunlight. Understanding which colours it scatters also helps us make sense of a sunset.
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Goats keep a horizontal eye on the world
An elongated pupil and rotating eyes help goats watch the ground, including when they lower their heads to feed.
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The gecko’s secret beneath its toes
To understand a foot gripping a wall, we need to change scale: the crucial structures are much smaller than we can see.
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A sea star walks on feet beneath its arms
Small moving tubes work beneath the sea’s most familiar star shape, revealing a very different way of travelling.
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A bat flies with a very different kind of hand
Bat wings are transformed forelimbs: elongated fingers support a membrane, while the thumb stays free. Familiar parts, remarkable proportions.
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The satin bowerbird decorates its courtship
A structure of twigs and blue objects looks like a tiny home, but it is for courtship: the nest is elsewhere.
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Penguins: those leaps are part of swimming
Porpoising alternates water and air, allowing breathing during travel, but the behaviour is not shared equally by every penguin species.
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Crows remember a face. And learn from one another
Experiments with American crows reveal face recognition and social learning: sometimes a reputation can travel through the branches.
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The cuttlefish changes the shape of its skin too
The common cuttlefish does more than adjust its colours: it can raise small bumps and change its skin’s surface texture.
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Seahorses, the dad with the baby bump
The female produces the eggs, but the male carries them in a brood pouch and gives birth to the young.
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Honey bees give directions by dancing
Inside the hive, a dance communicates the direction and distance of flowers: movement becomes useful information for the other bees.
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Butterflies taste where they put their feet
Receptors on their feet help butterflies recognise what they land on, including when choosing a plant for their eggs.
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The sea otter already brought the tools
Stones and shells become tools for opening prey: sea otters have different habits, influenced partly by what they eat.
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The wombat’s bathroom geometry
An Australian marsupial produces cube-shaped droppings: research into its intestine explains the corners, while other details remain open to investigation.
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An octopus has three hearts. All with jobs to do.
Two hearts serve the gills and one serves the rest of the body: underwater, circulation comes with a division of labour.
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Flamingos: pink is on the lunch menu
Chicks start out grey. Adults get their colour from pigments in their food: biology has a palette of its own.
Read the discoveryIllustrated reads with verifiable sources. Original illustrations made with AI assistance.