A sea dragon rises from the ocean and disappears into the clouds. But even a creature of legend must find food, navigate rival territories, and conserve its strength.
Meet Lan Yu, a sea dragon nearly forty-six metres long. Follow her from open water to a contested river mouth, through gathering clouds and rain, and back into the depths for an encounter with a deep-water squid.
Between Sea and Sky opens MYTHS ALIVE, a natural-history fantasy series exploring how mythical creatures might live. Each episode follows a different creature through its habitat, adaptations, and daily struggle to survive.
EPISODE 1: DRAGONS — BETWEEN SEA AND SKY
Which mythical creature should we follow next?
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Off the eastern coast of Asia, dawn comes to a sea hidden by cloud.
Beneath the surface, something immense is rising.
This is Lanyu, a female sea dragon, almost 46 meters long.
She has no wings, but her life extends far beyond the ocean.
Winter has held Lanyu in deep water.
Now the sea warms and the monsoon turns.
For dragons, the sea is only a threshold.
The season of the sky has begun.
Underwater, four powerful limbs fold close to her body.
Her spine and tail carry a wave along its length, driving her forward like an immense eel.
Each movement conserves strength for the journey ahead.
The dorsal fin steadies her body in the water.
It may also help disperse charge between the overlapping scales.
Two pairs of barbells around her snout detect the smallest changes in pressure.
They reveal fish in darkness and hidden turbulence among the clouds.
Worn scales record almost 300 years.
Yet for a species that can live a thousand, Lanyu is still a young adult.
Lanyu's journey crosses only part of the dragon's world.
From deep seas to inland rivers, each habitat has shaped them differently.
At sea, colour is camouflage.
Lanyu's blue body blends into the surrounding water.
Black individuals hide along the edges of the deep.
White falls move through cold seas and snow clouds.
Red, gold and violet are rarer,
often associated with warm currents and geothermal shores.
Each colour belongs to a different corner of their world.
Where river meets sea, salt water gives way to fresh.
Here lives the Jiao Long, a smaller relative of the sea dragon at home in rivers and wetlands.
The Jiao Long has shorter, paler scales and a single horn.
It rarely ventures far into salt water.
Its world lies beyond the reeds.
The estuary becomes a border between two kinds of dragon.
Sea dragons venture upriver when water levels rise.
But the border Lanyu has reached already has an owner.
Spring brings fish upriver to breed, an opportunity for Lanyu.
But a male Jiao Long is patrolling.
His shorter body helps him manoeuvre in the narrow channel.
Either could inflict a fatal injury.
For animals that live for centuries, fighting is a costly gamble.
Beyond the boundary, fish have gathered in the shallows.
Lanyu circles them.
The water turns and silver bodies tighten into a ball.
One successful hunt can provide energy for several days among the clouds.
Lanyu continues following humid air that helps her hold her height with less energy.
Along the way, cloud begins to gather around her.
Moisture condenses on cooler scale ridges.
The field around her body appears to draw droplets together.
In an already saturated cloud, this may bring rain a little sooner.
Rain is the footprint Lanyu leaves in the atmosphere.
Shallow pools fill.
Along her path, sea, cloud, forest and river become parts of one living cycle.
At dusk, Lanyu returns to the sea and dives beyond the reach of sunlight.
Rock crevices shelter young fish.
But in darkness, a refuge can also become a trap.
This deep water squid has followed a warm current towards the coast.
For the small fish sheltering here, its arrival is a disaster.
But darkness cannot hide its movements.
After the hunt, Lanyu enters a rocky shelter.
Her immense body coils.
Now she conserves her strength.
And beyond this shelter, the journey continues.
