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.
The Black widow spider is one of the most poisonous and dangerous spiders in North America. They are usually identified by their black color and red marking on the underside of their abdomen, also called the opisthosoma.This red marking is usually shaped like an hour glass.They Are Arachnids.he female black widow spider is darker and larger than the male. Where the female is usually dark black, the male is often dark brown and doesn't have as bright red of an hour glass shape on the abdomen. The female can grow to about Â½ an inch long body and 1 Â½ inch leg span.