Complex sentence: If the lizard is picked up or handled it may urinate on its captor in an attempt to discourage it, it may also bite, though its teeth are not large enough for it to pose any real danger to humans.
Split into simpler sentences: If the lizard is picked up or handled, it may urinate on its captor in an attempt to discourage it. It may also bite, though its teeth are not large enough for it to pose any real danger to humans.