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.
Find out more about the Fossa! The King of the Madagascan jungle! The Fossa is known as the King of the Madagascan jungle.. In spite of its nickname, it is not even one meter long. It is a large carnivorous animal that lives on Madagascar, an island that split from Africa a long, long time ago, resulting in a number of animals that evolved in unique ways. The Fossa is a great tree climber. It spends most of its time up in the trees, and sometimes catches nimble lemurs.