"Among 120,000 king penguins (Aptenodytes patagonicus) on the sub-Antarctic South Georgia Island, one stood out—a yellow penguin never seen before.
King penguins are known for their tuxedo look; white front with 
black
back, sides, head and feet, with traces of bright yellow around the
neck. This unique yellow penguin lacks any of their normally distinctive
black coloring. It features instead a stunning bright yellow neck and
head, with creamy back and sides.
Biologists have speculated (prior to any possible genetic analysis)
that it has a mutation which causes it to produce only a little of the
pigment (melanin) that gives penguins their black colour. This condition
is probably leucism. So its yellow pigment (spheniscin), unique to penguins, has come to the fore in this way.
However, while this malfunction gives the penguin its striking
appearance, melanin shortage comes with disadvantages, including less UV
protection. Melanin gives structural strength to feathers, so these are
likely weaker and will wear faster. Underwater from above, penguin’s
dark backs normally blend in with the dark ocean, so the mutant will
find it harder to avoid e.g. hungry leopard seals. Nonetheless, it could perhaps successfully survive and mate. It was
observed swimming with and moving about freely amongst the other king
penguins.
But even then, it would not be ‘evolution in action’, which requires vast numbers of changes that gain information.
The ‘yellow’ change, like the vast majority of mutations, corrupts or loses
information. So it points to a fallen world in which, following the
entrance of sin and death, everything is subject to decay. This includes
the genomes of living creatures, moving farther away from God’s ‘very
good’ (Gen. 1:31) creation."
CMI
