I hereby nominate Python reticulatus, the reticulated python. The word reticulated means "resembling a grid or network." The connection to the world of blogging should be obvious. The reticulated python happens to be longer and less bulky than most other pythons and boas, which is the likely fate of this blog.
Other reasons for picking the reticulated python abound. At a minimum, a blog with biological swagger shouldn't hesitate to dive into the heart of biophobia and snag as its mascot the very embodiment of human fear, loathing, and fascination in the natural world. Besides, I secretly root for Slytherin House in the Harry Potter novels.