Facts about Dahlia pinnata. 1  Dahlia pinnata is a tuberous perennial, growing to 1 m tall. 2  The Dahlia pinnata flower petals are used in salads. 3  The Dahlia pinnata flowers are hermaphrodites and are pollinated by insects. 4  The first modern dahlia hybrids are the result of crossing between Dahlia coccinea and possibly Dahlia pinnata.
Goldfish Development. Baby goldfish are born much darker than they will be as adults. This may be because dark colors helps these small, vulnerable fish escape the attention of predators. With proper husbandry, the fish gradually change color and develop orange or gold scales. Fancy goldfish may develop color patterns including white patches.
Fancy goldfish varieties come in many different body shapes and colors and display differnces in their heads, eyes, gills, faces, fins, and tails, Each fancy variety has some particular physical traits that have been developed over generations until finally the fish displays exaggerated versions of the original traits.