Role in The Food Chain
It has been speculated that gulls are "flushed" pink when molting, especially in areas with farm-raised salmon. However, not enough is known about the relationship between astaxanthin and plumage. For example, cardinals seem to produce astaxanthin from carotenoids when molting, even when fed primarily seed with natural yellow dye.
Lobsters, shrimp, and some crabs turn red when cooked because the astaxanthin, which was bound to the protein in the shell, becomes free as the protein denatures and unwinds. The freed pigment is thus available to absorb light and produce the red color.
Read more about this topic: Astaxanthin
Famous quotes containing the words role in the, role in, role, food and/or chain:
“Certainly parents play a crucial role in the lives of individuals who are intellectually gifted or creatively talented. But this role is not one of active instruction, of teaching children skills,... rather, it is support and encouragement parents give children and the intellectual climate that they create in the home which seem to be the critical factors.”
—David Elkind (20th century)
“My role in society, or any artist or poet’s role, is to try and express what we all feel. Not to tell people how to feel. Not as a preacher, not as a leader, but as a reflection of us all.”
—John Lennon (1940–1980)
“The most puzzling thing about TV is the steady advance of the sponsor across the line that has always separated news from promotion, entertainment from merchandising. The advertiser has assumed the role of originator, and the performer has gradually been eased into the role of peddler.”
—E.B. (Elwyn Brooks)
“Hume, and other sceptical innovators, are vain men, and will gratify themselves at any expense. Truth will not afford sufficient food to their vanity; so they have betaken themselves to errour. Truth, sir, is a cow which will yield such people no more milk, and so they are gone to milk the bull.”
—Samuel Johnson (1709–1784)
“We are all bound to the throne of the Supreme Being by a flexible chain which restrains without enslaving us. The most wonderful aspect of the universal scheme of things is the action of free beings under divine guidance.”
—Joseph De Maistre (1753–1821)