All cases of fluid in the ear are caused by some form of auditory tube dysfunction which prevents your eustachian tube from adequately draining. Common causes for developing fluid in the ear for both adults and children includes: Allergies. Any kind of congestion, from a cold virus, similar infection, or even pregnancy.
Latrodectus hesperus. The female black widow spider is considered the most venomous spider in North America. The venom of the black widow spider is 15 times as toxic as the venom of the prairie rattlesnake. Only the female black widow is dangerous to humans; males and juveniles are harmless. The female black widow will, on occasion, kill and eat the male after mating. More than 35,000 species of spiders occur worldwide. About 3,400 species of spiders in 64 families are found in North America.
This is a fairly large spider (the abdomen can be about as large as the tip of your little finger) that is generally all black except for the red hourglass mark on the underside of the abdomen. It is a hairless species with a very round abdomen.s stated earlier, they are very timid spiders that will do everything they can to avoid confrontation. There has never been a recorded death from a Black Widow bite in Alberta, and the last death in North America north of Mexico was over ten years ago.