National Geographic : 1996 Sep
Venomous message Hollow fangs delivervenom pro duced in adjacenttiny bulbs. No human is known to have died of a tarantulabite-burning and swelling generally last a few hours-buta venom dose can kill a small animal. The fluid may have medicinal use in .treating blood clots. cm w Sale delivery system ale tarantulasare equipped Sth specializedpalps, hook - ed appendageson the i ending arms near the StWhen ready to mate, males Weave a web and deposit a drop of sperm on it. The sperm is then drawn up into the bulb-shaped tips of the palps, which deposit it into the female. Flanked by protective tufts, needle-sharp retractable claws enable tarantulasto climb walls. Underneath,vel vety pads of hair cushion the weight of the spider-andcreate eight buoyant pontoons that enable some tarantulasto walk on water.