By Paul Johnson
How can you tell a boy penguin from a girl?
There is a reason why all penguins look alike: penguins are not sexually dimorphic. That means all penguins – boys and girls – look the same.
The only way to truly tell the gender of a penguin is by close physical inspection.
Experts can generally guess at the gender of a penguin after watching the behavior of a penguin for a period of time, but it’s just a guess. Not only do male and female penguins look the same, they also both work together doing many of the same activities to protect their eggs and raise their chicks.
So if you have a problem telling boys from girls in the penguin world, don’t worry. There’s a scientific reason for it.
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