Newly described scorpion can spray and inject its venom — the first South American species known to do this. A scientist has ...

Australia’s infamously dangerous arachnids have revealed a more benign side, with their deadly venom harbouring the potential to block sodium channels involved in pain, epilepsy, and stroke.

The theory behind the Joro spiders' origin in the U.S. is that the venomous arachnids were unintentionally transported by way ...