Leo 24. A drowning man turns into a fish.
It was a matter of needing to adapt quickly to a new home. He was surprised to learn that evolution could happen so fast, but then realized that actually he was not taking on a new form, but rather recapturing an old one so deeply buried in the remote past that it had been completely forgotten by his conscious mind. And the new old form seemed just as intent on recapturing him as he it.
The sea felt welcoming, and his new life, so much more horizontal than the vertical one he had left, was quite cozy, for the soft blue waters and the voices of whales gently echoing through him made him feel as if he were swimming through a vague, spacious dream nestled in the midst of an endless nap.