Stimpunks Foundation × More Realms · L★S · Field Guide No. 16

A Field Guide to
Eggs

Fifteen beginnings among our Terran kin, sorted by how far the egg gets from the body — and the catalogue turns out to disagree with the picture in your head. The egg you are imagining occupies one band out of five. Hard shell, tidy oval, a parent sitting on it. Most of the others are carried in a father, sunk under the skin of a mother's back, held in a mouth that cannot then be used for eating, or never laid at all. Laying one and sitting on it is an option. It was never the standard.

L★S
How to use this guide Each entry gives an animal, what it actually does, how a default reading misreads it ("sounds like / actually"), and full field notes. Click any entry to open its notes.
Where this came from The companion to The Shell Was Your Calcium (No. 57), which borrows the trans community's egg crack and finds that an eggshell hands most of its calcium to the skeleton of the animal it contains. That zine asks what does a shell do. This one asks the prior question — what counts as an egg — and the answer is much wider than one hen could carry.
Why the last entry is dashed Because the apparatus stops there. Fifteen entries get a reframe table because a popular verdict misreads an animal. The egg-crack accounts get none: there is no mistaken verdict about what it felt like when your own life rearranged itself behind you, so there is nothing to correct.

Five distances from the body

The sort is ours, and it came out of the entries rather than ahead of them. We began meaning to sort by what the shell is made of, and that sort collapsed immediately — the chicken and the common murre are the same object by every material measure, and the interesting thing about the murre is not its shell chemistry but a textbook explanation of its shape that turns out to be wrong. We tried sorting by who pays for the embryo, and several animals sat in two gates at once. What actually varies, and varies cleanly, is how far the egg gets from the body that made it. So the sections below run from eggs that never leave, out through eggs carried in skin and in mouths, to eggs guarded at arm's length, to eggs put down in sand and walked away from for good. None of these ranks above another. That is the whole reason it is a catalogue and not a ladder.

One · It never leaves
Retained inside a body — sometimes not the mother's
Two · Under the skin
Laid, then grown over
Three · Carried
On a back, or in a mouth that cannot eat
Four · Set down and guarded
The band the word egg actually means
Five · Left
Put down, walked away from, and it works
One · It never leaves

No egg is ever laid

Three animals that keep the egg inside a body until there is no egg left to speak of — and the first of them is not a curiosity but one of the most-repeated inventions in vertebrate history. Live birth evolved at least 115 separate times in lizards and snakes alone. The third case keeps the egg inside a body that did not make it: the father's.

Two · Under the skin

Laid, then grown over

One animal, and it belongs in a gate of its own because nothing else on this list does what it does. The eggs are laid — properly laid, fertilised outside — and then the mother's skin closes over each one and builds it a lid. She is not carrying them. She has been rebuilt around them.

Three · Carried

Somewhere on a parent, at all times

Two animals for whom the egg is outside the body and still never set down — and in both cases the parent doing it is the male, at a measurable cost to himself. One cannot eat for a month. The other's eggs simply die if he puts them down, which makes the carrying not devotion but plumbing.

Four · Set down and guarded

The band the word actually means

Five animals in the band everybody pictures — and four of them are strange inside it. A bird whose egg is nearly a quarter of her. A mammal whose egg is fed through its own shell. An octopus that guarded one clutch for four and a half years. And the seabird whose famous pointed egg is explained, in book after book, by a mechanism that does not happen.

Five · Left

Put down and walked away from

Four eggs whose parents are gone before anything happens, which sounds like the failure state and is nothing of the kind. One hatchling digs itself out of up to a metre and a half of mound and can fly the same day. One waits eighteen years for the water to come back. And one is left in a stranger's nest, which requires the shell to be a forgery good enough to survive inspection.

Where the apparatus stops

We are not going to reframe your life

This one gets no reframe table, and the absence is the argument. Everywhere above, "sounds like / actually" corrects a verdict that got an animal wrong — a shape misexplained, a father mistaken for a mother, a walked-away-from egg mistaken for neglect. Nobody has reached a mistaken verdict about the morning your own life rearranged itself behind you. There is nothing here to correct, and a column headed actually would be an insult dressed as rigour.

Not: Not permission from nature. Nothing here licenses anything about how we live or who we are. A universe that could approve could also decline, and we would not take the verdict either way. Down to is not because of. Not a ranking. The five sections are five distances, not five rungs. The megapode is not a worse parent than the octopus; it is running a strategy that has worked for millions of years and needs no apology. Not mascots. No animal here is Autistic or trans, and none is a stand-in for us. They are kin with their own business, and the borrowed word in the last entry is credited to the people it belongs to rather than to a lizard. Not a lesson about competition. The sand tiger is here because it shows an egg being used as food, which is a fact about supply. It is not a parable about the strong prevailing, and reading it that way is precisely the misapplication one whole collection here exists to refuse. Not settled. Whether squamate live birth ever reverses to egg-laying is actively contested; the arms-race account of cuckoo egg mimicry has a live challenge against it; and several figures below are ranges rather than numbers, and say so.
Star stuff, beginning

Every animal here is spending calcium, carbon and phosphorus forged in dying stars on the same problem — how to start — and no two of them solved it the same way. The calcium in a kiwi's enormous shell, the keratin in a megapode's egg tooth, the trehalose that holds a brine shrimp intact through eighteen dry years: all of it assembled in stellar interiors and in the deaths that followed.

What the fifteen have in common is not a method. It is that each of them began. The methods do not converge, they do not rank, and the ones a tidy account would call deficient — no shell, no nest, no parent present, no egg at all — are ancient, stable, and in one case reinvented more than a hundred separate times. There is no standard egg.