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.
Percula Clownfish. Of the nearly 30 species of clownfish, there are two types commonly referred to as the orange clownfish (Amphiprion percula and A. ocellaris).The percula clownfish is distinguished by its vivid orange color with distinctive white bands outlined in black.ercula Clownfish. Of the nearly 30 species of clownfish, there are two types commonly referred to as the orange clownfish (Amphiprion percula and A. ocellaris).