Updated April 05, 2016. Nasal saline irrigation has been shown to be a beneficial therapy in the treatment and prevention of sinus infections and allergic rhinitis. This non-pharmacologic therapy involves rinsing the nasal passages with a salt-water solution, helping to rid the nose of allergens and mucus.
The goliath birdeater tarantula of South America is arguably the biggest spider in the world. Watch as one hapless mouse wanders into a spider's deadly trap, and see the unusual adaptations that make the goliath one of nature's deadliest ambushers.
World's Biggest Spider Weighs As Much As A Newborn Puppy. If you shriek in fear at the sight of the tiniest of spiders, you may want to avoid the rainforests of Suriname, Guyana, northern Brazil and southern Venezuela, where the Goliath birdeater dwells!