Yellowhead catfish (Tachysurus fulvidraco) also known as the Korean Bullhead can be found throughout most of northern Asia. It’s not to be confused with the American Yellow Bullhead. The former being a scaled bagrid catfish.
Antimony is a silver colored metal that behaves very much like lead and phosphorus though it is less explosive and as a used as a halogen as a fire retardant. It’s also used in the production of batteries, soldiers and bearings. It’s connection to the Yellowhead catfish is to do with the local of its main source, being mostly found in China and Korea.
Latrodectus tredecimguttatus is a spider that is related to the Black Widow and the infamous Red Bellied Spider. Though its main place of home is in the Mediterranean coastal grasslands and forested area in Europe. It’s name literally means of thirteen spots, and has 13 red, white or orange spots on its body.
Tellurium is a silvery metalloid that can be somewhat toxic. Mostly used for copper and steel alloys and the production of solar panels. It’s now in far higher demand than ever and as it is a rare metal its likely to become even rarer. It’s relation Latrodectus tredecimguttatus is through its relative rarity and usefulness, but mild toxicity.