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.
The world's most venomous spiders are the Brown Recluses and Funnel Web spiders. However, the Australian Redback spider is more venomous than the Australian funnel web spider (sometimes called the Sydney funnel web spider).