These changing quantities are called variables. A variable is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables: independent, dependent, and controlled.
The Inland taipan (Oxyuranus microlepidotus) is considered the most venomous snake in the world with a murine LD50 value of 0.025 mg/kg SC. Ernst and Zug et al. 1996 list a value of 0.01 mg/kg SC, which makes it the most venomous snake in the world in their study too. They have an average venom yield of 44 mg.
The most poisonous spider in the world. Brazilian wandering spider was considered the most venomous spider in the world by the Guinness Book of Records. He received his nickname because of its eternal journey and non-woven webs in favor of endless search of food. Wandering spider never lived in one place and always wanders.