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.
Most Poisonous, Deadliest or Most Dangerous Snakes in The World. Black Mamba. Black Mamba, also known as Common Mamba, is considered as the longest poisonous snake in the African continent. The name does not refer to the color of its scales, but it is characteristic of the interior appearance of its mouth.