Eye dilation from eye drops used for examination of the eye usually lasts from 4 to 24 hours, depending upon the strength of the drop and upon the individual patient.
Fossa. Fossas are the largest carnivores in Madagascar. Secretive and cat-like, these predators are well equipped for chasing down lemurs in the forest. They are famed for having some strange development, courtship and breeding traits. As they grow, female fossas go through a period of 'masculinisation' during which their genitals resemble those of a male. Breeding takes place in the autumn when a female attracts a large number of males.
The elusive fossa is a solitary animal and spends its time both in the trees and on the ground. It is active at night and also during the day. Females give birth to an annual litter of two to four young, and adulthood is reached after about three years.adagascar is home to an enormous variety of plant and animal life, and a number of species are unique to the islandâincluding over 30 species of lemur, the fossaâs prey of choice.