What arachnologist worth his salt could forget the arachnid with a two-foot legspan? The Order Amblypygi not only contains world record species, but also some of the most improbable and unbelievable looking members of the Class Arachnida. Otherwise known as whipspiders, these creatures appear to have been formed in the deep recesses of a human nightmare, and yet are the only large arachnids that are entirely harmless to humans. Predatory whipspiders display advanced social behaviors and externally visible reproductive biology of immense complexity. This text presents cutting edge biological...

There is a large arachnid that eats scorpions and sprays acid. This amazing arthropod apex predator is the most significant arthropod predator in its range and yet few humans could answer a single question about it. Most people are not even aware that vinegaroons (or whipscorpions) exist. Although fearless monsters to other microfauna, and not so micro fauna, the whipscorpion is without venom and can hardly even pinch a human. These details-reproductive biology with representative photos of each stage discussed, morphological explanations including descriptive scanning electron micrographs,...