<unk> s do not feed on humans and typically bites occur as a defense mechanism. This can occur from unintentional contact or trapping of the<unk> . Most<unk> s have fangs too small to penetrate human skin. Most bites by species large enough for their bites to be noticeable will have no serious medical consequences. Medically significant<unk>  venoms include various combinations and concentrations of necrotic agents, neurotoxins, and pharmacologically active compounds such as serotonin. Worldwide only two<unk>  venoms have impact on humans—those of the widow and recluse<unk> s. Unlike snake and scorpion envenomation, widow and recluse species bites rarely have fatal consequences. In addition to the widespread widow and recluse<unk> s, some<unk>  families found exclusively in remote tropical regions have a lethal neurotoxic venom: the wandering<unk>  in Brazil and the funnel web in Australia. However, due to limited contact between these<unk> s and humans, deaths have always been rare, and since the introduction of anti-venom in Australia, there have been no funnel web related deaths.
Spider bite
Dog bite
Cat bite
Animal bite
Centipede bite
Nail biting
Snakebite
Needlestick injury