structural:scholar_edition, information:extraction, linguistic:paraphrasing, structural:summarization
Ecology and behaviour

Martens are solitary animals, meeting only to breed in late spring or early summer. Litters of up to five blind and nearly hairless kits are born in early spring. They are weaned after around two months, and leave the mother to fend for themselves at about three to four months of age. They are omnivorous.