Överlevnad, or survival, refers to the ability of an individual or species to continue living in challenging conditions. This concept encompasses various strategies and skills that help organisms adapt to their environment, find food, and avoid predators. In humans, survival skills can include foraging, shelter building, and first aid. In nature, many species have developed unique adaptations for survival. For example, some animals have camouflage to blend into their surroundings, while others may have physical traits that help them escape from threats. Understanding these survival mechanisms is crucial for studying ecology and the balance of ecosystems.