Claws: The Ultra-Jumbo Class of Crustaceans

Last month, the U.S. media engaged in a bit of a kerfuffle over a particularly beefy lobster that had been pulled out of the ocean at the Bay of Fundy. At some 23 pounds and an estimated near-century of life on this planet, the king-size crustacean is a worthy subject of a perennial news cycle that manages to somehow focus on monstrously outsized shellfish. The Fundy lobster isn’t alone, and is one in a line of many other big buggy bastards from all over the world that have received attention by tipping the scales at 20 or 30 pounds or more. The reasons why knowledge of humongous lobsters eventually ends up being mass shared are because 1) it happens to be a slow news day, 2) photos with people alongside lobsters posed in forced perspective to make them look even larger are awesome, and 3) it’s damned impressive, considering the average lobster that makes it to Red Lobster’s Spectator Tanks of Inevitable Death is only two or three pounds, a fraction of the size of these animals.

This is great and all, but our planet is populated with entire species of crustaceans that reach strikingly, unexpectedly insane proportions as a part of their normal biology. Perhaps the most famous, and most recognizable of these is the Japanese spider crab (Macrocheira kaempferi), an unsettling, spindly, deep-sea demon that looks like the end result of the Slender Man impregnating a shrimp, and at their largest, can outweigh your samoyed and bear hug a Ford Focus.


“AHHH, what the hell! Sorry, sorry, sorry…I’ll make sure to knock next time!”

But there are other crustaceans slowly shambling about under the waves, along sandy beaches, or even in familiar rivers and streams that are strikingly massive, and get comparatively little attention, despite being some of the biggest, crustiest, clicky-clacky pinch-mongers around.

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Eucalyptus regnans, Tallest Tree in the South

I like really tall trees.

I suppose the possession of this adoration of our planet’s living, heaven-raking spires comes as a kind of birthright. I grew up in the Pacific Northwest, an area not only richly coated with swaths of the densest temperate rainforests in the world, but also the tallest forests in the world. I came of age spending a great deal of time hiking and navigating forests largely consisting of several tree species that are among the world’s tallest. Coast redwood (Sequoia sempervirens), douglas-fir (Pseudotsuga menziesii), and Sitka spruce (Picea sitchensis) are all found in the lush coastal forests of Oregon and far Northern California where I spent many long, summer days of my youth; each of them generally regarded as being within the top five tallest tree species on the planet, based on the consistency and frequency of superlatively monstrous individuals within each. Even the “smaller” trees in the region seem to reach uniformly towering heights. Western redcedar (Thuja plicata) can top out at 200 feet (61 m) or more above the soft, spongy soil of the dark, coastal woods of Washington and Oregon. Western hemlock (Tsuga heterophylla), a very common sight in the Pacific Coast Ranges, can easily grow to some 250 feet (76 m) at its droopy crown. The bottom levels of the canopy in a Pacific Northwestern old-growth rainforest can potentially be no less than 150 feet (46 m) high, which is a value not often matched in any other forested region on Earth.

A shaggier version of myself standing with the Quinault Lake Redcedar, the largest western redcedar in the world, on Washington’s Olympic Peninsula in June 2011 (Photo credit: Werner G. Buehler)

It’s no wonder that growing up immersed in this place has left me with a love for these great trees; old-growth forests full of venerable, enormous trees are incomparably majestic places. The sense of perspective and scale that these trees provide is invariably humbling. It’s difficult not to walk alongside them in a kind of hushed reverence, as if you were traversing the floor of an ancient and solemn temple or cathedral, one crafted from humongous, gnarled pillars of wood and moss, rounded with smoothed with deep time and dark silence. The temperate rainforest springs to life in intense bursts of emerald from wherever these trees have embedded their water-ravenous feet, with lithe lances of ferns and the ghostly baubles of root-associating mushrooms erupting wherever soil space is available. These dampest and darkest of woods, blanketed from the sun a football field’s length upwards, have been described as primordial, as a place of senescence and decay, but I think this is a misplaced conceptualization. The sites where the greatest of these trees grow is positively choked with life; life that clings to and parasitizes other life, life that reaches achingly skywards in even the weakest, most diluted sunbeam to touch down on the forest floor. In my mind, these are places of as much birth and flourishing as they are museums.

This aesthetically spell-binding quality, mixed with these forests’ complex ecology and somewhat unique, insular propensity to harbor endemic species…creatures found nowhere else in the world…is what persistently attracts me back to them time and time again (and also inspires me to write about themmultiple times…because I’m a little insufferable).

It is these types of places, misty, verdant groves of titanic conifers, that come to the mind of most when they envision the world’s tallest trees…granted they call the Northern Hemisphere home. It’s somewhat widely known that California’s coast redwoods are the world’s tallest species, and across the North American continent the sheer size of Pacific Northwest forest trees is no secret…especially when compared against the far more “compact” deciduous trees that are common on the Eastern Seaboard. But a very close contender for the title of the most gravity-taunting plant in the world comes from a location not often associated with impenetrable forests. One of the tallest organisms on Earth is an altogether different kind of plant than the behemoth redwoods, and it hails from the opposite side of the globe from the dewy haunts of Cascadia…a place far more associated with rust-colored, alien deserts, blinding heat, and a faunal assemblage that constitutes the world’s largest bucket of shorts-soiling “hell fucking no.”

I’m of course talking about Australia.

Yes, Australia is a place of extremes…where the venom flows like water, the coral reefs are supersized, and summer turns the landmass into a not-so-metaphoric broiling pan of unending solar-powered punishment  (one that keeps getting hotter). From a biological perspective, Australia is a continent perpetually locked in rebellious teenager mode, deviating from the rest of the world’s biota and letting its freak flag fly proudly for millions of years in a parade of pouches, flightless birds, weird plants, fangs, spikes, and scales. It is therefore quite fitting that one of the tallest trees in the world, the only one in the top five that is not a conifer, in pure contrarian style, is Australia’s Eucalyptus regnans…the “mountain ash” or “swamp gum.”

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