Hello beloved readers!
I apologize most heartily for my relative absence- we’re wrapping up the field season here in Exmouth, with all that entails: extra snuck-in snorkel trips, boat cleaning, taking posters and papers off of the walls, last-minute photo-ops on the water, cooking strange combinations of things from the remnants of our kitchen cabinets… It’s been a bit of a whirlwind. But still fun, of course.
As a metaphor for my lack of posting, here are a series of photos of giant clams.
The color in the mantle (the soft part, showing from inside the two shells) comes from algae that the mollusk can cultivate within its own tissue. The algae and the clam’s own filter feeding both provide it with food/energy.
Giant clams like these can live up to 100 years in the wild, building up layers of thickening shells as they go.
Just so that nobody emails me with warnings that these animals should be added to my list of Things-In-Australia-That-Want-To-Kill-Me (Wikipedia: “It was known in times past as the killer clam or man-eating clam, and reputable scientific and technical manuals once claimed that the great mollusc had caused deaths; versions of the U.S. Navy Diving Manual even gave detailed instructions for releasing oneself from its grasp by severing the adductor muscles used to close its shell.”) I’m pretty sure that I’d have to be trying to climb inside of one of them for it to even give me a good pinch. Most can’t even close their shells the whole way, nor would they have any desire to hang on to a snorkeler/diver. They’re about as dangerous as rotting logs. But much prettier.