January 11, 2011. 1  According to Education Next, teachers retire, on average, at around the age of 58. AARP reports that 33 percent of all beginning teachers leave the teaching profession within three years of beginning their careers, but the majority of teachers continue teaching and can reap retirement benefits later in life.
Deep-sea anglerfish, hatchetfish, and lantern fish are among the best-known luminescent fishes. In most such fishes, luminescence is produced intracellularly; the light is emitted by special cells called photocytes. The anatomical structure of the luminous organs of many fishes is similar to that of squids.
The clown fish (also known as the anemonefish) is a small species of fish that is found around tropical coral reefs. The most commonly known species of clown fish is orange with white markings but clown fish can be found in many different colours and can also differ in shape.here are 28 recognised species of clown fish that are found in the Indian and Pacific Oceans. The clown fish is also found as far north as the Red Sea and inhabits the Great Barrier Reef, on the Australian east coast.