mushrooms aren’t what they seem

eyes hit serious diminishing returns wrt resource costs vs vision quality as they get bigger, so the question became: what the FUCK do giant (and colossal) squid need to see so badly that they couldn't see with swordfish-sized eyes that's justifying that massive energy cost? that nothing else in the deep ocean needs to see so fucking badly??

turns out the one strength eyes that big really have over much smaller eyes is: seeing large glowing objects in water deeper than 500 meters from an appreciable distance.

sperm whales are the primary predator of giant squid. sperm whales don't glow. BUT! water that deep is full of bioluminescent creatures-- these creatures light up when bumped into. something a sperm whale's size is continuously bumping into those critters, it's just surrounded by a glowing field all the time when it's swimming at those depths, visible from a distance-- if you have the right eyes-- as a massive glowing shape. so basically the only reason to have eyes the size of soccer balls is if you live in the deep ocean and your life depends on having a heads up when a hungry sperm whale lurking around

The largest dam removal in U.S. history. So successful that the salmon that haven’t run freely in the river for literally over a century came back the next year. Not steady progress over a decade as expected, the very next salmon run they came home. No one alive saw salmon in that river outside the hatcheries kept by native’s tribes and the Department of Fish And Wildlife scientists desperately trying to save them. One of the activists who helped bring the suit spoke of their dying grandmother making them promise to bring the fish home, and they didn’t know how that was possible, but they spent decades doing it.

The legal basis for successfully suing the power company who owned the dams was Indigenous treaty rights to eat the fish. Eating the fish was the one thing in a century that succeeded in being a clear and legally binding right that superseded the desires of white capital and industry. I have been going to the public interest environmental law conference off and on for 20 years where a lot of organizing for Undam The Klamath happened. I’ve heard updates about every legal tact they tried as they happened, and they tried everything.

There are healthy, thriving salmon, trout, and lamprey in a rewilding and recovering Klamath River right now as a direct result of Indigenous people eating them. Of their legally binding right to eat them. They sure as fuck care more about those fish than any white vegan ever could. They are salmon people that the Creator sent Salmon to feed, while charging the People with protecting and stewarding them. It’s not possible to learn about salmon and trout in the Pacific Northwest without learning this, and it’s unambiguously racist to dismiss this symbiotic relationship.

The white vegans are trying to get all hunting and fishing banned in Oregon, and that’s quite possibly the single most catastrophic thing that could be done to the animals here because we killed off all the major predators of creatures like deer and without anything hunting them their numbers will explode, eat all the vegetation, destroy the ecosystem, and then die along with everything else in that failing ecosystem. Controlled hunting of deer is vitally necessary for the deer to survive. This is something Native people know, but patronizing racist savior-complex white people refuse to listen to.

I have a whole collection of Oregon’s Public Broadcasting’s documentaries about Klamath River or the larger story of fish and people in the region. If you watch nothing else, watch Klamath Dams Are Coming Out, First Salmon Ceremony, After The Dams, and First Decent (Native made). It could not be clearer that the salmon are being protected and nourished by the people who eat them, and that stewardship is a massive part of their creation myths. But it contradicts political vegan dogma so they don’t listen.

Harvestmen, otherwise known as daddy long-legs (not to be confused with the cellar spiders of family Pholcidae, which are also described as daddy long-legs) bear a striking resemblance to spiders, but they actually belong to a separate order of arachnids known as Opiliones. These strange-looking creatures have eight legs, but only two eyes, and their body segments are largely fused together, giving the body a noticeably rounded, pill-like appearance.

Above: Metagryne bicolumnata, commonly known as the bunny harvestman

There are roughly 6,700 known species of harvestman, but researchers estimate that a total of more than 10,000 species may currently exist. Their physical features vary greatly from one species to the next; some harvestmen have crab-like claws, spikes, thorny legs, elongated bodies, colorful features, or cryptic markings. Most of them are equipped with long, spindly legs, but there are some that have shorter, stockier limbs instead.

Above: Megabunus diadema and two unidentified species from family Sclerosomatidae

Unlike spiders, harvestmen have an omnivorous diet that includes fungi, fruit pulp, seeds, pollen, lichen, algae, and invertebrate prey, and they are capable of consuming solid food, whereas spiders are typically carnivorous and feed only on fluids.

Above: a harvestman from genus Chasenella munching on a mushroom-cap

As this article explains:

Harvestmen consume mushrooms, fruit pulp, seeds, and seed appendages more frequently than spiders probably because they are “solid food feeders," which means they can ingest solid tissues by biting off small pieces. In turn, spiders are “fluid feeders” and feed on vegetable matter most frequently in the form of fluids (e.g. nectar, stigmatic exudate, plant sap, and honey dew) rather than fungal or plant tissues.

Above: genus Marthana

When given a choice between fresh fruit or invertebrate prey, some harvestmen actually prefer the fruit:

Schaus et al. carried out a feeding trial in which the Neotropical harvestman Erginulus clavotibialis was given a choice between fresh pineapple and live invertebrate prey. This harvestman demonstrated a distinct preference for fruit over the invertebrate prey.

Above: Dentobunus quadridentatus

Harvestmen are also much more social than spiders, and the males of some species have been known to engage in paternal care, which is a trait that rarely occurs among arthropods:

Single fatherhood is the rarest form of parental care in nature. Still, males are often the sole caretakers of progeny among a number of species of daddy long-legs, also known as harvestmen. In these species, fathers are exclusively responsible for guarding eggs that females lay on the undersides of leaves; the males remain on the eggs nearly constantly for months.

Above: several harvestman eggs and a young hatchling

When threatened, harvestmen often bob up and down erratically in an effort to confuse their attackers. They also have several other defense mechanisms, including pungent, foul-tasting secretions, the ability to "play dead," and autotomy, which is the ability to discard one or more of their own limbs in order to escape from predators.

Above: the photo at the top shows an unidentified harvestman from family Cosmetidae, while the photo on the bottom shows a species from genus Gnomulus

Harvestmen are completely harmless to humans. Their mouthparts are far too small to penetrate human skin, and contrary to popular belief, they do not have the "world's deadliest venom" -- in fact, they don't produce any venom at all.

Above: genus Obidosus

Sources & More Info:

BioOne: Fungus and Fruit Consumption by Harvestmen and Spiders: the Vegetarian Side of Two Predominantly Predaceous Arachnid Groups

Laboratory of Arthropod Behavior and Evolution: Harvestmen

Argo Biology: Citizen Science Reveals How Devoted Harvestman Dads Evolved Again and Again

NBC: Daddy Long-Legs Paternal Care Pays off in Longer Life, More Sex

PLOS One: Paternal Care Decreases Foraging Activity, but Does Not Impose Survival Costs to Caring Males in a Neotropical Arachnid

Gulo in Nature: Are Daddy Long-Legs Venemous?