They looked like visitors from the future.
They arrived hundreds of millions of years ago.
Field Notes
We often imagine evolution as a ladder climbing toward greater complexity.
But the ocean is full of creatures that challenge that story.
Comb jellies have been drifting through Earth’s waters for an unimaginably long time. Long before cities. Long before mammals. Long before humans wondered where they came from.
The future, it turns out, sometimes looks a lot like the past.