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 Fossa is the largest land predator on the island of Madagascar with some individuals growing to nearly two meters in length from their snout to the tip of their long and slender tail.ossa Diet and Prey. The Fossa is the largest carnivorous mammal on Madagascar and therefore survives by only eating other animals in the surrounding forest. The Fossa has evolved perfectly to the hunting and consumption of Lemurs and in fact, more than half of the Fossa's diet is comprised of them.