今日专家影片：动物学家迈克·林利讲述出于特定目的而培育绵羊。

Discover how farmers use genetics to optimise sheep breeds for different purposes, such as meat or wool production, by selecting and crossbreeding animals with desirable traits. Learn how understanding heredity and environmental adaptation helps in creating stronger, better-suited livestock, particularly in challenging climates. This insight into genetic selection highlights the practical application of genes in agriculture and farming.