Moult

Moult (or molt) is the process of shedding an outer layer, such as feathers, skin, or fur, at a specific time in an animal's life cycle. It is a biological necessity for many animals, enabling them to replace worn or damaged coverings with new ones. This renewal often occurs seasonally and can be influenced by hormonal changes, environmental factors like temperature and light, and the animal's overall health. The moult allows for improved insulation, camouflage, or the growth of new structures like breeding plumage in birds or fresh antlers in deer, reflecting changes in the animal's adaptation to their environment.

Moult meaning with examples

• The male cardinal began to moult his vibrant red feathers in late summer, slowly transitioning to a duller appearance as the breeding season ended. This annual moult helps him replace worn plumage before winter arrives. The process showcases his health and allows him to become better insulated for the colder conditions.
• Snakes must moult their skins as they grow, and the old skin comes off in one whole piece, providing a remarkable example of biological change. It reveals a new, vibrant layer beneath. This periodical shedding allows the snake to grow bigger by discarding its old restrictive outer layer.
• After a particularly harsh winter, the sheep began to moult their thick wool, revealing a thinner coat. This change was essential for the warmer months to prevent overheating. The sheep were noticeably different as the moult was progressing.
• During spring, many birds go through a moult, shedding old feathers to prepare for the breeding season, sporting more colourful new plumage. This helps them attract mates and ensures their flight capabilities remain in top condition.