It's unclear how long they've been down there, but genetic research indicates they may be morphing into a new species. The newly discovered tarantula Trichopelma grande has unusually hairy legs ...

Strange new scorpion species that sprays venom discovered - Scorpion found to use two different modes of venom projection – ...

Every strange and wacky creature struggled to survive, and competition was fierce. For the first time, some animals became predators. This put immense selection pressure on species, resulting in a ...