Gentoos typically sport the more traditional tuxedo penguin pattern, but in cases of leucism and melanism, they can get a makeover. Leucism is the loss of pigment, making an animal appear more ...

MELANISM has long been a subject of special interest to British entomologists owing to the rise and spread of melanic varieties in many British species of moths and butterflies, such groups as the ...

Emperor penguins, like many birds, don’t show any individual diagnostic characteristics as adults, unless there is a scar or abnormality. So to identify an individual, or even a male from a ...