Some causes of tinnitus are less common, including: 1  Meniere's disease. 2  TMJ disorders. 3  Head injuries or neck injuries.  Acoustic neuroma.
Jumping spiders do sometimes bite, but their venom is not considered to be dangerous (unless youâre allergic to spider bites). They are sometimes mistaken for black widow spiders, but they are far less dangerous. Jumping spiders donât hunt using webs, but they do build a web-like nest called a retreat.
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.