Is it time to do a duck? I think it’s time to do a duck. But let’s not do any old duck, let’s do the fanciest duck there is. Let’s do the Mandarin Duck (Aix galericulata)

It’s Latin name is quite fun, as it literally translates as diving wig.
In Korea they are know as wedding ducks. They mate for life, so at Korean weddings couples are given a pair of carved wooden ducks, symbolising romance or something…

Now you don’t need me to tell you that the most striking thing about this bird is its plumage. Just take a look at that handsome son of a duck!

When feathers were getting handed out the Mandarin Duck said, ‘I’ll take one of everything … and also sails for my wings. I float on the water, right? I’m a little boat.’
The female, as is usually the case, is a lot less impressive.

Which actually raises a question. Why do birds have such pointed physical differences between males and females? And why don’t you see it so much with other animals?
It all has do with genes. You see, birds don’t muck around with XY chromosomes like we do. They have ZW chromosomes. And this could get super complicated (but it’s also super fascinating because in some cases birds can change sex; I’ll revisit later) but for now, I’ll give the abridged version:
In mammals the Y chromosomes, which determines male sex, is very small. Whereas in birds the Z chromosome is huge. This means there are thousands of extra genes where mutations can happen that only get passed to the male of the species. Essentially, male birds can develop a whole bunch of crazy attributes in a relatively short amount of time, compared to other animals. Mostly, all of them based on what the ladies find sexy, as apposed to being of any particle use. Typical useless male: Exhibit A, the Peacock.

But the long and the short of all them genes is we get birds that look like this crazy chap.

And I think we can all agree, the world is a more colourful place for it.
Thank you abnormally large Z chromosome.
28/04/2019
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