Amphibious ambiguous

The mangrove killifish is way ahead of us. It lives in pools that are prone to drying up, so it can also live on land for months at a time – often inside hollowed-out logs – where it survives by breathing through its skin. It's also one of only two vertebrates – the other being the closely-related ocellated rivulus – that can self-fertilise....Plenty of animals are hermaphrodites, with both male and female sexual organs. But they still tend to mate with others to mix their genes up a bit... Mangrove killifish don't tend to bother. Adults have both ovaries and testes, so when they want to reproduce they release sperm and eggs simultaneously. After the eggs are fertilised, they lay them in gravel.

I am the Killifish,

The Killifish is I,

I live in the air

Yet I do not die;

Androgynous amphibian

All alone in the tree,

Majestically monogamous

Magnificent me.

Feeling frisky feeling flirty

Feeling frolicsome and flighty,

Hermaphrodite

Meets Aphrodite;

All my ova I am over,

I am he I am she

I am mother father lover

I am me me me.

I am you they is we

Us is quite a group,

Prodigious homozygotes

Of the primal soup;

You never could imagine

Such a narcissist could be -

But really, who is you?

For we is only me.

In solipsistic splendour

I wallow out my days

Fantasising of myself

In a love-lorn daze;

Androgynous amphibian

All alone in the tree,

Majestically monogamous

Magnificent me.