List the resources for which close species can compete, like marten and sable, living in the same territory.

1) Food (rodents, small birds, etc.),
2) a place for a nest (hollow, old squirrel nests, raven),
3) hunting territory, shelters, water during a drought.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.