Trap Door Spiders. 1  1. Catch a trapdoor spider. 2  2. Open their trap door by taking a knife to slowly open the door. 3  3. Leave the door attached to the web tunnel.  4. Fill the the tunnel with 1  water. 5. Wait a couple of minutes and start twisting the web by turning the door again and again.  6. Pull very gently on the web during the twisting set.
In the US, estimated average dietary manganese intakes range from 2.1 to 2.3 mg/day for men and 1.6 to 1.8 mg/day for women. People eating vegetarian diets and Western-type diets may have manganese intakes as high as 10.9 mg/day (4). Rich sources of manganese include whole grains, nuts, leafy vegetables, and teas.
Brazil nuts are especially high in selenium, containing 544 micrograms, and other tree nuts such as almonds and cashews have high amounts of both selenium and magnesium. Whole grains such as wheat and oats are also high in both minerals, with up to 160 milligrams magnesium and 60 micrograms selenium per serving.