Swimming Again: How Innovation And Plastic Helped Winter Survive

Author: PHoF Historical Committee
Lead Researchers: Wylie Royce
Featured Hall of Fame Member: Giulio Natta and Karl Zielgler

In 2005, an orphaned bottlenose dolphin named Winter was found tangled in a trap line in Mosquito Lagoon, Florida. The injury caused her to lose her tail, a body part essential for swimming, social interaction, and survival. Traditionally, injuries like this in marine animals meant there was little hope. Nature itself—time, rest, and basic care—was the only solution available. For humans and animals alike, early prosthetics were often made from natural materials like natural rubber, leather, or wood. These materials worked in simple cases but were never designed for constant exposure to saltwater or the powerful motion of a dolphin’s body.

The Limits of Traditional Materials

Natural materials could not meet Winter’s needs. They absorbed water, wore down quickly, and caused discomfort or skin irritation. Most importantly, they could not flex and move the way a dolphin’s tail must move to swim naturally. Winter needed comfort, durability, lightweight strength, and long-term reliability—qualities that older materials could not provide. Without these benefits, her survival and quality of life were at risk. A team of marine biologists and prosthetic engineers turned to plastics for an answer.

A New Solution Through Plastics

They selected a medical‑grade thermoplastic elastomer that was flexible, lightweight, strong, and water‑resistant. Using advanced design and 3D printing techniques, the team created a custom plastic tail shaped to match Winter’s natural movement. Unlike lesser natural materials, this plastic did not break down in saltwater and allowed smooth, powerful motion. With the new tail, Winter relearned how to swim, play, and thrive.

Winter’s story shows how plastics, when thoughtfully designed and responsibly used, can change lives. Her plastic tail was not just a tool—it was a second chance. Today, plastics continue to support innovation in medicine, accessibility, and conservation. Stories like Winter’s remind us that plastics are more than materials; they are problem‑solvers that help people, animals, and communities move forward with hope