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An example of polymorphism: the two colour variations found in the orchid Dactylorhiza sambucina.
Juvenile American alligator swimming, showing the distinctive yellow striping found on juveniles
The yellow-winged darter, Sympetrum flaveolum, is a dragonfly found in Europe and mid and Northern C
) Ornithine and citrulline, which are not found in proteins
Sivapithecus is a Miocene ape (middle) with anatomical similarities to orangutans (left) rather than
The carotenoid lycopene, found in tomatoes and tomato products, functions as an antioxidant