Some are brightly colored, some are territorial, and others camaflagoe themselves to blend in with the suroundings. To the diver it is obvious not to offer a finger to draw one the critter closer for a better view, however we sometimes forget our brains and play with animals which fight have a very sharp bite or sting. Nevertheless, there are those animals which we see in shell shops and desire to touch or collect a speciman. This nero-toxin can neutralize the sodium in a persons nervous system and cause the nerves not to recieve signals like to the heart or diaphram. Other marine life such as corals and jelly fish are members of the phylum Colenderata which in latin colony of cells which some specialize in stinging to collect food for the community.
Some stinging cells called nemphosites can be quiet posinous to humans.
Other marine life like the southern skate, not to be confused with the sting ray which are in the same phylum of chordata, has yellow spots with white rings, Its protection is a 500 volts of electricity. Other bottom dwellers are the freshwater eels which have a very large month which hates fins on its borrow. These eels usually live at the bottom in mud and travel up rivers in spring time to breed. The family of fish which lascks a swim bladder like the stonefish, stargasers, robinfish, and toadfish all blend in with the sourrounding and have posoinous dorsal spines. This family of animals is an ambush predator and uses the spines if eaten to prick the mouth of a larger fish and spits them out again.