Chemotherapy for breast cancer. Chemotherapy for breast cancer. Breast cancer chemotherapy is typically used to treat patients with locally advanced or metastatic breast cancer. Your medical oncologist may recommend chemotherapy before you undergo breast cancer surgery (neo-adjuvant) or after surgery (adjuvant):
Most venomous scorpion. The most venomous scorpion is the Tunisian fat-tailed scorpion (Androctonus australis). It is responsible for 80% of stings and 90% of deaths from scorpion stings in north Africa. Body length: 100 mm, weight: 15 g, lifespan: 4 years, discovered: 1758. All records listed on our website are current and up-to-date.
Answer: The world's most venomous insect is an ant. Not just any ant will do, since many ants don't sting. Of the ones that do, the award for most toxic venom goes to the harvester ant (Pogonomyrmex maricopa). The LD50 for harvester ant venom (in rodents) is 0.12 mg/kg. Compare that to a LD50 of 2.8 mg/kg for a honey bee (Apis mellifera) sting.