First off, if you are not at least an occasional reader of Tetrapod Zoology, I don't know how you could possibly live with yourself. Fossils and charismatic species galore.
Although I thought I'd heard it all, this recent entry introduces a whole 'nother brand of nuts.
...philosopher David Pearce is honestly proposing that we should feel ethically compelled to eradicate all suffering and cruelty from the natural world in order to create a sort of global vegan paradise where predators don't exist. Pearce terms this the Abolitionist Project (for more on Pearce and his ideas see this wikipedia article). His plans are, as discussed in depth on his website, theoretically plausible and involve such things as the use of brain implants, behaviour-modifying drugs, and genetic manipulation. Eventually, the lion will, literally, lie down with the lamb, hyaenas will not feel compelled to eat baby elephants alive, and - I presume - ladybirds will not eat aphids, and so on