Microscopic image of Fusarium, a fungus that causes eye infections. Fungal keratitis is an infection of the cornea (the clear dome covering the colored part of the eye) that is caused by a fungus. Some fungi that have been known to commonly cause fungal keratitis include 1  : Fusarium species.
Stoats live in any habitat in which they can find prey. In New Zealand they can be found from beaches to remote high country, at any altitude, up to and beyond the tree-line; in any kind of forest-exotic or native; in scrub, dunes, tussock, and farm pastures. They are even known to occur near human settlements.
Weasel biology. Three species of true weasels live in North America. The largest, at 18 inches, is the long-tailed weasel (Mustela frenata). Long-tails occupy diverse habitats throughout the United States and into Central America. They appear to prefer patchy landscapes of mixed habitats intersected by streams and small rivers.