Just delightful to watch: theo jansen’s beest animals – Strandbeest Evolution 2025 provides an update on the evolutionary development, which is going on since 1990.. Every spring I go to the beach with a new beast. During the summer I do all kinds of experiments with the wind, sand and water. In the fall I grew a bit wiser about how these beasts can survive the circumstances on the beach. At that point I declare them extinct and they go to the bone yard.