Pharmacologists at Georgetown University recently discovered a peptide from this animal's venom (specifically from Grammostola spatulata) that blocks 
Pharmacologists at Georgetown University recently discovered a peptide from this animal's venom (specifically from Grammostola spatulata) that blocks stretch-activated ion channels and protects the heart from an arrhythmia known as atrial fibrillation. However, its venom has been shown not to harm humans despite its rumored association to cause victims to weep and dance. For ten points, name this "wolf spider" associated with its eponymous Italian city of Taranto.
Pharmacologists at Georgetown University recently discovered a peptide from this animal's venom (specifically from Grammostola spatulata) that blocks stretch-activated ion channels and protects the heart from an arrhythmia known as atrial fibrillation.
{Tarantula} (accept early {wolf spider} but do NOT accept “Tarantella”)