A fierce predator with a huge stinger and long pincers is the oldest land-animal fossil ever found on the former Gondwana supercontinent, a new study reports. The 360-million-year-old scorpion was ...

Venom, it turns out, is not a one-size-fits-all defense mechanism. Certain venomous creatures can modify the toxic stuff they spit out, depending on what they need to use it for. The Southern African ...