He did indeed.

Hammond was flamboyant, a born showman, and back in 1983 he had had an elephant that he carried around with him in a little cage. The elephant was nine inches high and a foot long, and perfectly formed, except his tusks were stunted. Hammond took the elephant with him to fund-raising meetings. Gennaro usually carried it into the room, the cage covered with a little blanket, like a tea cozy, and Hammond would give his usual speech about the prospects for developing what he called “consumer biologicals.” Then, at the dramatic moment, Hammond would whip away the blanket to reveal the elephant. And he would ask for money.

The elephant was always a rousing success; its tiny body, hardly bigger than a cat’s, promised untold wonders to come from the laboratory of Norman Atherton, the Stanford geneticist who was Hammond’s partner in the new venture.

But as Hammond talked about the elephant, he left a great deal unsaid. For example, Hammond was starting a genetics company, but the tiny elephant hadn’t been made by any genetic procedure; Atherton had simply taken a dwarf-elephant embryo and raised it in an artificial womb with hormonal modifications. That in itself was quite an achievement, but nothing like what Hammond hinted had been done.

Also, Atherton hadn’t been able to duplicate his miniature elephant, and he’d tried. For one thing, everybody who saw the elephant wanted one. Then, too, the elephant was prone to colds, particularly during winter. The sneezes coming through the little trunk filled Hammond with dread. And sometimes the elephant would get his tusks stuck between the bars of the cage and snort irritably as he tried to get free; sometimes he got infections around the tusk line. Hammond always fretted that his elephant would die before Atherton could grow a replacement.

Michael Crichton’s stories before Hollywood got hold of them carried a significant amount of insight about the nature of modern science.

My favorite kazoo cover (unrelated)