Flamingo Friday: Arch

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I Can't Give You Anything But Love

…Or at least the aftermath of love amongst sea slugs.

Imagine my joy when, stopping by the Invertebrate House this weekend with Annie and a visiting friend, I saw that the tank housing tube anemones was also the home of a whole bunch of little stowaway sea slugs!

I don’t think the sea slugs were put in the aquarium deliberately, but, as far as I was concerned, they were the main attraction.

We also saw these little spirals lining the glass of the tank, and I was fairly certain that they were the egg ribbons laid by these guys.

I can say “guys” because sea slugs are simultaneous hermaphrodites—that is, each individual is both male and female all the time. Most sea slugs, however, still mate with other sea slugs to produce young—and often they don’t just mate in pairs but will form little orgiastic daisy chains, mating in the male and female position at once. (This has been known to severely perturb researchers, who have peevishly complained that they can’t always tell which slug is doing what.)

Once the slugs have had their fun, they lay their egg ribbons, sometimes in this lovely spiral pattern. -By the way, if you think I’m the only person sufficiently obsessed with nudibranchs (aka sea slugs) to be attentive to their egg-laying, check out this note posted on the Sea Slug Forum, complete with photos, discussing whether sea slugs always lay eggs in a counter-clockwise direction.

And that’s all I can give you.

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You Just Never Know What Could Happen...

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Undomesticated Peeves Part 2

“Oh, no, he’s crawling on the fruit salad!”

“Watch out—he’ll sting you!”

I have complained before—quite eloquently, I believe, and at length—about people’s deeply irritating tendency to refer to any animal they see as “he,” regardless of the fact that they’re likely to be wrong at least half the time. This is bad enough.

What’s even worse is when people refer to individuals of social-insect species—like most common bees and ants—as “he,” because in this case they’re virtually guaranteed to be wrong.

All those scurrying ants transporting bits of smushed candy bar or lifting huge beetles or biting each other’s limbs off? Female.

All those bees rolling with orgiastic ecstasy in the nectar-filled bowls of flower blossoms? Female.

Those wasps circling your picnic table with alarmingly predatory glints in their faceted eyes? Female.

Among most of the true “eusocial” animals—species that live in colonies and whose members have divisions of labor based on reproductive ability or function—a male’s only role is as a sex object. (Considering that, it’s a shame that they’re called “drones” rather than, say, “gigolos.”) There are definitely exceptions to this rule—that’s what’s so great about animal behavior and ecology: there are always exceptions to rules—but by and large, that’s the case. You’ll have one (sometimes more) reproductive female, and then a bunch of (often sterile) females that do all the work of cleaning, caring for offspring, gathering food, and defending the nest/hive/colony.

Eusociality is a fascinating set-up (for more detail, read Nicola Plowe’s Introduction to Eusociality), most common among bees, wasps, ants, termites, and aphids. Researchers have (so far) found only a very few non-insect species that are eusocial: sponge-dwelling snapping shrimp (Synalpheus spp.) and naked mole rats.

But back to my point: the ant heading towards that puddle of Coke, the bee thrumming with excitement among the wild roses, the wasp that stung you three times on the arm—don’t call them “he.”

Now, don’t feel too bad about not having known this. Practically any movie (or commercial) with anthropomorphized social insects has gotten this wrong, thus ingraining erroneous information into our collective consciousness. Nevertheless, it is wrong—not just half-wrong-tinged-with-chauvinism, as is the case with most “he” attributions—but almost completely wrong.

There are exceptions: if you spot a male bee mating with a female, for example, then you can say “he,” as in, “Oh my god! His penis broke off inside her and now he’s falling to his death?!?” (Trust me, I’m not making this up.)

Otherwise, though, for the bees and ants, stick with “she.” It’s safer all around.

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Flamingo Friday: Twist-Preen

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