Fangless Non-Toxic Boa Snake

The Fangless Non-Toxic Boa Snake (Corallus infortunatus) is a snake that, though technically a vicious, bloodthirsty carnivore, must resort to eating plants and cowering in bushes to ward off predators.

Evolution and Near-Extinction
It is still a largely-debated scientific mystery how the Fangless Non-Toxic Boa Snake came to evolve, as it has very few evolutionary advantages. Many believe that it evolved and flourished during the coldest parts of the Quaternary Glaciation, because it tends to snuggle.

However, this evolutionary advantage could not last forever, and other snakes evolved to resemble The Fangless Non-Toxic Boa Snake, misleading the Fangless Snakes to cuddle with the other snakes, causing them to get mangled and/or eaten.

Eventually the Non-Toxic Boa Snake fell into what official pseudanimal bodies classified as "On its last legs." (They were well aware of the irony.) However, there was then a sudden spike in the development of the human Anterior Insular Cortex, and people started caring for these Boa Snakes, knowing what it felt like to be almost extinct.