Spider behavior Spider behavior Spider behavior refers to the range of behaviors and activities performed by spiders. Spiders are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom. They are the largest order of arachnids and rank seventh in total species diversity among all other groups of organisms which is reflected in their large diversity of behavior. Almost all known spider species are predators, mostly preying on insects and on other spiders, although a few species also take vertebrates such as frogs, lizards, fish, and even birds and bats. Spiders' guts are too narrow to take solids, and
Organ replacement in animals cats, have high enough blood component values, and have no infectious diseases. One donation could be used by up to two animals. Policy regarding how donor animals are treated varies. In April, 2014, a veterinarian office in Fort Worth Texas, was accused of keeping dogs that had been presumed to have been euthanized, and using the animals for blood withdrawal. Open-heart surgery for dogs requires a six- to eight-person team to carefully monitor the patient before and during the invasive surgery. The entire surgery lasts five hours, during which time the dog is connected to a blood oxygenator and the