Signal crayfish (Pacifastacus leniusculus) are freshwater crustaceans that have gained attention due to their adaptability and invasive nature in certain regions. One aspect that piques curiosity about these creatures is their lifespan. In this article, we will delve into the lifespan of signal crayfish, factors that influence their longevity, and interesting facts about their life cycle. Lifespan of Signal Crayfish The lifespan of signal crayfish can vary depending on various factors, including environmental conditions, availability of food, and predation risks. On average, signal crayfish have a lifespan of 3 to 8 years in the wild. However, some individuals have been known to live up to 20 years under ideal conditions.…