The word "cull" means to select or choose from a group, often with the intention of removing or rejecting certain members. It commonly refers to selecting animals or items from a group based on certain characteristics and removing the inferior, weak, or unwanted ones. In animal populations, culling often involves killing some animals to control the size or improve the quality of the group. More generally, culling can also mean gathering or selecting the best or the required examples from a larger set, such as culling the best passages from a book or gathering information from various sources.
