Blue-ringed Octopus

Blue-ringed octopus Hapalochlaena species This small octopus is usually found on the Great Barrier Reef off eastern Australia. It is grayish-white with iridescent blue ringlike markings. This octopus usually will not bite unless stepped on or handled. Its bite is extremely poisonous and frequently lethal.

Weever fish Trachinidae species The weever fish is a tropical fish that is fairly slim and about 30 centimeters (12 inches) long. All its fins have venomous spines that cause a painful wound.

Toadfish Batrachoididae species Toadfish are found in the tropical waters off the coasts of South and Central America. They are between 17.5 and 25 centimeters (7 to 10 inches) long and have a dull color and large mouths. They bury themselves in the sand and may be easily stepped on. They have very sharp, extremely…

Tang or surgeonfish Acanthuridae species Tang or surgeonfish average 20 to 25 centimeters (8 to 10 inches) in length, with a deep body, small mouth, and bright coloration. They have needlelike spines on the side of the tail that cause extremely painful wounds. This fish is found in all tropical waters.

Stonefish Synanceja species Stonefish are found in the tropical waters of the Pacific and Indian oceans. Averaging about 30 centimeters (12 inches) in length, their subdued colors and lumpy shape provide them with exceptional camouflage. When stepped on, the fins in the dorsal spine inflict an extremely painful and sometimes fatal wound.

Siganus fish The siganus fish is small, about 10 to 15 centimeters (4 to 6 inches) long, and looks much like a small tuna. It has venomous spines in its dorsal and ventral fins. These spines can inflict painful stings.

Scorpion fish or zebra fish Scorpaenidae species Scorpion fish live mainly in the reefs in the Pacific and Indian oceans. They vary from 30 to 90 centimeters (12 to 35 inches) long, are usually reddish in coloration, and have long wavy fins and spines. They inflict an intensely painful sting.

Rabbitfish Siganidae species Rabbitfish are found predominantly on the reefs in the Pacific and Indian oceans. They average about 30 centimeters (12 inches) long and have very sharp spines in their fins. The spines are venomous and can inflict intense pain.

Stingray Dasyatidae species Stingrays inhabit shallow water, especially in the tropics, but in temperate regions as well. All have a distinctive ray shape, but coloration may make them hard to spot unless they are swimming (Stingrays settle into the sand). Shuffling your feet, rather than stepping, to avoid stepping on a Stingray and triggering their…

About 200 years ago an Englishman classified clouds according to what they looked like to a person seeing them from the ground. He grouped them into three classes and gave them Latin names: cirrus, cumulus, and stratus. By being familiar with the different cloud formation and what weather they portend, you can take appropriate action…