a house in an invictus jungle

Увидела мемес и подумала про них лл

Oh my god

useful creature

book of hours, Flanders c. 1300-1310

The Great Nebula in Andromeda.

Physical Science for Secondary Schools. 1962.

My friend, are you in for a treat! The lake sturgeon, which is the sturgeon found in the Great Lakes, can grow to be two meters long and weigh 90 kilograms! It is the biggest fish found in the Great Lakes!!

But, see, the lake sturgeon isn’t the biggest sturgeon species. That would be the beluga sturgeon, which regularly grew to be four to six meters long before overfishing took a toll on their populations. Belugas are a lot younger on average nowadays — these fish can live to be over 100 years old — and seldom exceed three meters, but I mean, even that isn’t anything to scoff at. The very biggest beluga sturgeon ever caught was a jawdropping 7.2 meters long, and weighed 1 571 kilograms!! Other beluga sturgeons of such sizes have been caught too, and some unverified sources say that there has even been belugas that exceed 10 meters! They are the biggest freshwater fish in the world, and are up there among the biggest bony fishes in the world. That’s so big, it’s hard to even grasp or imagine. Seeing pictures of sturgeons puts it in a better perspective, I think. Here is a 800 kilogram sturgeon, a bit more than half of what the biggest sturgeon weighed:

Like, look at that. You see this?? That’s so fucking insane!!! Sturgeons never cease to amaze me with how… impossible they seem. These fish are like aquatic dragons or prehistoric beasts from days long gone, and in a way they are the latter! Sturgeons have been around as a group for over 160 million years, so they did indeed live in the age of the dinosaurs. Whenever I see pictures like this I can only wonder what the humans who first saw big sturgeons must’ve thought. I know what sturgeons are but I still have trouble grasping their gargantuan sizes, imagine seeing the dark form of a giant in the water and not having the faintest idea of what it is, or even that it's entirely harmless to humans.

Other sturgeon species are also very really big! The lesser-known kaluga isn’t that far behind at a maximum length of 5.6 meters and maximum weight of about a ton. Several white sturgeon that have exceeded three meters and even just shy of four meters and weighed over 400 kilograms have been caught, and the biggest, but unverified white sturgeon even caught was around six meters long and weighed 900 kilograms. The critically endangered Chinese sturgeon maxes out around five meters and 600 kilograms. All this to say, these old fishes are massive!!!