The Slowest Sneeze in the Sea

"It moved," Maya said.

"It's a sponge," said Soren. "Sponges don't move. That's basically their whole thing."

They were sitting on two overturned buckets in the back room, where the rescue center kept the tanks that weren't ready for visitors yet. The aquarist had pointed them at a clipboard and a list of water temperatures to check, then gone off to deal with a sea star that was molting in a way she didn't like.

Maya leaned her nose almost against the glass. Inside the tank, on a flat gray rock, sat a lump the color of an old orange. It had a wide hole at the top, like the mouth of a tiny volcano.

"Watch the top hole," she said.

Soren watched. Nothing happened. He looked at the clipboard. Tank four, eleven degrees. He wrote it down.

"It's pulling in," Maya said.

"You've been staring at it for one minute."

"Soren. The hole is smaller than it was."

He looked again. He didn't want to agree just because she said it. But the hole did look different. Tighter. Like a fist that had been open and was now, very slowly, deciding to close.

"Okay," he said. "Mark the time."

He wrote it in the corner of the page. Three forty-one. Then he got up and pressed his face next to hers, which was the only way to see anything that slow.

"Here's the problem," Soren said. "To pull yourself in, you need muscles. To tell the muscles when to pull, you need nerves. A brain, or at least nerve stuff. Sponges don't have any of that. No nerves. No brain. Not even the beginning of one."

"Then what's it doing?"

"I don't know. That's why it's a problem."

They watched. The center was quiet except for the hum of the pumps and the small wet sounds of water moving through pipes. Outside, gulls argued over something.

"It's still closing," Maya said after a while. "Slowly. But it's not stopping."

"How long now?"

She checked. "Almost twenty minutes."

Soren sat back. His legs had gone stiff. "Twenty minutes to make one move. If it were a person, you'd think it was sick."

"Maybe slow isn't sick. Maybe slow is just how it talks."

He wrote that down too, though he wasn't sure why. He flipped to a clean page and started a small drawing of the lump, the rock, the hole.

"There," Maya said, and her voice changed. "It's at its tightest. The whole body. Look, the sides came in too, not just the hole."

The sponge had shrunk. The entire orange lump had drawn itself together, hunched, smaller than when they'd started. It held like that for a moment. Then the top hole began to push back open, and a cloud came out of it.

It wasn't fast. It was a slow gray puff, a breath of cloudy water and bits, drifting up out of the volcano mouth and spreading into the tank.

"It sneezed," Maya said.

"It can't sneeze. A sneeze is a reflex. Reflexes are nerves."

"Then call it something else. Whatever you want to call it, it just did it."

Soren stared at the drifting cloud. He was running out of things to be sure about. "It squeezed its whole body to push the junk out. The stuff it can't use. The trapped bits." He paused. "Over half an hour. With nothing to tell it to."

That was the part that wouldn't sit flat in his head. He kept turning it. A thing with no nerves had decided, in some way that was not deciding, to clench every part of itself in order, slowly, like a wave you could only see if you waited.

"Soren." Maya tapped the glass low, near the rock. "Look who came."

Two small fish had drifted in from the shadowed end of the tank. Pale ones, finger-length, the kind the center kept for cleanup. They hung in the cloud the sponge had made. And then they began to eat it. Mouths working at the drifting bits, calm, unbothered, like they'd done it a thousand times.

"They were waiting," Maya said softly. "They knew it was coming."

"They didn't know. They just learned the sponge does this. Every few hours. So they hang around for the leftovers."

"That's worse," Maya said. "That's better. A thing with no brain makes dinner on a schedule for fish that have brains, and the fish learned the schedule of a thing that can't think."

Soren opened his mouth and shut it. He had wanted to correct her. He couldn't find the part that was wrong.

They watched the fish feed. The cloud thinned. The sponge sat on its rock, open again, plain again, an orange lump that looked like it had never done anything in its life.

"It'll do it again," Maya said. "In a few hours. Same thing. Whether anyone's watching or not."

"It's been doing it for longer than there have been people to not watch it," Soren said. "Sponges are old. Older than almost everything. Before brains existed at all, something like this was already squeezing itself clean in the dark."

Maya didn't answer. She was doing the math of that in her head, the long dark stretch of it, a body folding and unfolding without a single nerve to feel the fold, year after year, before there was anyone anywhere who could be surprised.

The aquarist came back in, wiping her hands on a towel.

"You two get tank four?"

"Eleven degrees," Soren said. "And the sponge sneezed."

"Oh, they do that," she said, already moving to the next tank. "Takes them forever. Nobody really knows how, with no nerves and all. Did the fish come for it?"

"Yeah," Maya said. "They were waiting."

"They always are." And she was gone again, into the next room, the next problem.

The two small fish picked the last bits from the water. The sponge sat open on its rock, gathering, gathering, getting ready to do the only thing it did, slow as the tide, certain as the tide, deciding nothing.