Chemotherapy can: 1  Make a tumor smaller before surgery or radiation therapy. This is called neo-adjuvant chemotherapy. 2  Destroy cancer cells that may remain after surgery or radiation therapy. This is called adjuvant chemotherapy. 3  Help radiation therapy and biological therapy work better.
Guinness world records has listed Brazilian Wandering Spider as the most poisonous spider in the world. They wander the floor at night rather maintaining a web or residing in a lair. During the day time, they will hide under the fallen logs, termite mounds, under the rocks and even in a banana plant.
The Guinness Book of World Records instead recognizes the Brazilian wandering spider (Phoneutria) as the most venomous spider â just 0.006 mg of the venom can kill a mouse, according to the records. (A 2002 study notes that the LD50 of a female Phoneutria nigriventer with an egg sac is 0.63 mg/kg).