The ocean is very good at being big.
It has room for storms and shipwrecks. It has room for the longest mountain range on Earth, hidden deep below the waves. And it had room, that year, for one young blue whale who was beginning to wonder if he was the only blue whale in the world.
He had spent his first months gliding beside his mother, drinking hundreds of liters of her rich milk each day and growing about 90 kilograms a day, which is like adding a whole grown person to yourself between one breakfast and the next.
Then, in the way of blue whales, they had parted. Now the sea stretched out on every side of him. Blue above. Black below. Big everywhere.
He listened.
He heard rain drumming on the surface far above. He heard the click and whistle of dolphins hurrying past. He listened hardest for a voice like his own, and the sea kept that one voice to itself.
So he did what blue whales do. He ate.
He found a drifting cloud of krill, small pink creatures, each one shorter than a crayon, floating together in their millions. He surged forward, threw open his mouth, and took in a single gulp of seawater nearly as heavy as his own body. The pleats under his throat stretched wide like an accordion. Then he pressed the water back out through his baleen, the curtains of bristle he carries where other animals keep teeth, and swallowed the krill by the shovelful.
In feeding season he could eat tonnes of krill in a single day. The largest animal in the history of the Earth, built entirely out of some of the smallest.
But a full stomach is quiet company.
That night, deep beneath the surface, he sang.
It was one of the loudest sounds made by any animal on Earth, and yet it was gentle. A hum. A pulse. A note so deep that most ears would feel it before they heard it.
The song slid down into the deep water, where sound travels wonderfully far, and rolled out across the ocean like slow thunder. One hundred kilometers. Two hundred. Farther.
He waited.
He sang again the next night. And the next.
Then, one evening, the water trembled.
An answer.
It was a note shaped like his own, worn thin by the long journey, rising from somewhere beyond the dark horizon. Another blue whale. Singing back.
He turned toward the voice and swam, one great tail stroke after another, for days. And in a cold green sea where the krill bloomed thick, he found what the song had promised: other giants, great shadows feeding in the silver water, each one enormous, each one singing.
He rose among them and blew a fountain of mist taller than a house.
The ocean is very good at being big. He knew that now, and he knew the rest of it too.
A voice, the right voice, is bigger.