Pupil size abnormalities can sometimes signal disease. 1  Glaucoma: A mid-dilated pupil can be a sign of glaucoma.  Aneurysm: An aneurysm that pushes on certain blood vessels in the brain can cause a dilated pupil as well as other symptoms.
Quick Answer. The total lifespan of a lightning bug is anywhere from one to two years. However, the bulk of that lifespan is spent underground in the larval phase. Adult lightning bugs have very short life spans, averaging just two months in the wild. Continue Reading.
Quick Answer. The housefly maggot will undergo three larvae stages and a pupa stage; the time to pass through all larvae stages is 14-36 hours and can be sped up based on environmental conditions. The pupa stage exhibits a large maggot size and protects the fly through final development to adult size. Continue Reading.