#biology is fun

[lilithsaintcrow]

“It’s even possible, Castro says, that his study actually underrepresents the effects of anchovy sex.”

[rainintheevening]

Test in school this morning. Hope I'm awake enough. Lord, help me focus and REMEMBER this morning.

[protectoursharks]

The shape of a fish's caudal tail can tell you a lot about how fast the fish moves! A rounded tail is the slowest and a lunate tail is the fastest! The lunate tail has the most optimal ratio of high thrust and low draw, making it the fastest.

Ichthyology Notes 2/?

[amnhnyc]

Peek-a-boo! Have you ever seen the granulate shellback crab (Hypoconcha arcuata)? Growing about 0.6 in (1.4 cm) long, this unusual-looking crustacean inhabits coastlines along parts of the western Atlantic, with a range that includes parts of the United States, Mexico, and Brazil. Unlike hermit crabs—which hide inside their chosen shells—this critter uses its posterior legs to secure shells onto its back, often shouldering pieces larger than its own body, as a defense against foes.

Photo: Austin Smith, CC BY 4.0, iNaturalist

[marinememes]

My coworker took a full frontal picture of the arapaima at work and sent this in our group chat

[feelingautistic]

Exciting news for the cute shark lovers of the world! We finally have a recorded sighting of a baby great white shark, likely only a few hours old.

The question of where great white sharks give birth still remains a mystery to this day but this footage may suggest the coasts of California, where the footage was taken, are a site where these sharks give birth.

[linkedin-offficial]

me when i get the opportunity to think about speculative biology and non-existent game mechanics in media i like

⠀

[bunjywunjy]

Humans sure seem to eat a lot of things that are poison to most other animals. Chocolate, garlic, onions, grapes, avocados, etc. But then there's capsaicin, which I think doesn't affect birds but IS a poison to humans but then we eat it anyway?? Is there anything else we eat that's fine for (some) animals but is bad for us but we eat it anyway? Why are we like this.

capsaicin actually isn't poisonous to humans, it even has a bunch of beneficial medical effects like reducing inflammation! it IS an effective fungicide and insecticide, but eating capsaicin is not at all actually poisonous to humans even in large quantities.

it just also causes extreme pain.

it does this by directly chemically activating the ouch-I'm-on-fire nerve endings in your mouth, which is a deliberate ploy to keep you from eating the pepper fruit!

at least it was before humans got ahold of it and started deliberately cultivating them to be even hotter.

humans are just freaks and decided that they liked that. that's all.

the other stuff is just a bonus!

[dokupine]

awawawawaawawawawa!

[bunnieswithknives]

Fop redesigns for funsies but also bcs I saw some star heel boots and had to put Dale in them immediately.

[protectoursharks]

There are four types of fish scales!

Cycloid scales are thin, overlap, and flexible. They're found on primitive teleosts (like minnows and carp).

Ctenoid scales have small, backwards pointed scales (known as cterns) make the fish more hydrodynamic and faster. They're found on Advanced Ctenoids (like perch and sunfish).

Ganoid scales are thick, diamond-shaped, and mostly non-overlapping. They're found on Chondrostei (like sturgeons and paddlefish).

Placoid scales are spikey and tooth-like with nerves. These are found on Chondrichthyes (like sharks and rays).

Ichthyology Notes 3/?

[chickenchirps27]

hello denizens of tumblr i come with humble offerings

they wish to romance you

[amnhnyc]

What has no heart and no brain? No, it’s not your ex… it’s the barrel jellyfish (Rhizostoma pulmo). Also known as the dustbin-lid jellyfish (yes, really), this species can reach an impressive 35 in (90 cm) in diameter and can weigh up to 77 lbs (35 kg)! Like other jellies, this critter relies on its nervous system to function.

Photo: tato grasso, CC BY-SA 3.0, Wikimedia Commons

[alithographica]

As promised, welcome to

Fun biology in TOTK’s designs

I'll keep this post updated as I go through the game. I'm going to skip the more general identifiable things like apples (they're based on apples!) because there are tons of more unusual species to talk about.

Overall, the really interesting thing I've noticed is that many of the more unique Earth-based lifeforms in TOTK are super ancient, like predating dinosaurs ancient, which is a really cool tie-in to the overall time-hopping plotline of TOTK. Specifically, they're found in the new areas (caves, depths) while the surface remains a bit more normal.

(There will be no plot spoilers in this post, and also I've barely gotten into the plot because I'm spending all my time wandering, so shhh no spoilers in the tags for like a month please.)

Most recent additions: More lilies, irises, wild ginger, spiny bones, pigeon extravaganza, plus added some more real photo comparisons to old stuff.

PLANTS

Bryophytes my beloved. Bryophytes are among the earliest land plants, waaaay predating flowers and even seeds. In our world, they’re small by necessity—they lack vascular systems to help move water around like other plants, so they have to stay small and moist (hence their frequency in caves in TOTK—though they do need some light in real life.)

In TOTK they’re quite large and I think that’s very sexy and art directors should give us big bryophytes more often

Anyway, there are three types of bryophytes: mosses, liverworts, and hornworts. First image pair is a moss, second is a liverwort. Those red-brown and palm-tree-like structures, respectively, are their reproductive structures.

Real liverwort photo © Graham Calow, NatureSpotUK

Not yet spotted: Hornworts! Did they forget the third bryophyte sister :(

I think these next guys are probably lycopods (specifically club moss, which is not a true bryophyte moss, thanks science.) Very old, but vascular, so they're a bit more evolutionarily recent than bryophytes.

Real photo © Gloria Hanley Schoenholtz, virginiawildflowers

All the enormous curly-topped trees in the depths: Ferns! They curl like that until they unfurl. Another very old plant, though younger than bryophytes and lycopods.

Real photo via The Cosmonaut, Wikipedia

Brightblooms and some of the other giant plants in the depths: Possibly based on a cycad? Again, a very ancient plant lineage. At this point, evolutionarily, they've developed seeds—that giant cone in the center is called a strobilus, and that's the seed structure.

These next few plants are angiosperms, meaning they produce flowers. Angiosperms are a more recent evolutionary lineage—still many millions of years old, but it took a while to develop flowers as a reproductive tactic.

Sundelions (left) are a fun recolor of a lily. There are also some scenery lilies (right) in various places—there are yellow ones that spring up when you turn on a lightroot (which gives them literal and thematic connection to the surface) and several other varieties, including tiger lilies, throughout Hyrule. Fun note, the sundelions appear to only have 5 stamen, while other lilies in the game (correctly) have 6. Seems to be an intentional decision to make it a more distinct fantasy species.

These next ones are Peruvian lilies/Alstroemeria, just used as a scenery plant but a very fun inclusion. Fun fact, not true lilies, so they're not deadly to cats like true lilies are.

Real photo © Dick Culbert, Wikipedia

Plum trees: These are also called out as plum trees in game! There's a journal in Kakariko that refers to the plum orchards.

Okay I'm a little proud of figuring this one out. Bomb flowers blend a few botanical references. Superficially, the fruit resembles a type of seed pod called a capsule—specifically it's very similar to a poppy capsule. The little red thing in the center is a nice addition to resemble both a flower stigma (reproductive part that leads to the ovary) and a bomb fuse. Now, poppy capsules disperse their seeds via wind, but there are other plants who do explode their seeds outwards as a dispersal tactic! This is called explosive dehiscence.

There is one tree in particular called the sandbox tree, AKA monkey-no-climb or dynamite tree (yes, really.) Their capsules look more like little pumpkins, but are known for violently exploding when ripe—they can launch seeds at 150 miles per hour (250 km/h) and spread them roughly 200 feet (60 m) away. The photo comparison is a poppy capsule but you should def go look up dynamite tree videos.

Real photo © PommeGrenade, pixabay

Fire fruits (and the other elemental fruits) grow on the same generic plant that looks kind of like it has grape leaves. Fire fruits resemble a specific botanical thing too though—the black netting is a papery calyx (part of the flower) seen in a nightshade genus, Physalis (golden berries, tomatillos, etc.)

Real photo © Helene Rogers, Alamy

I think this stuff is an Asarum, AKA wild ginger. I was actually puzzling over it until I walked past some today and went HEY

Not sure of the exact species but they're very green and heart-shaped and love being dense and low to the ground.

Real photo via David Stang, Wikipedia

Irises: Love irises, one of my favorite flowers and words, very happy to see them in game.

MISCELLANEA

Cup lichen! Lichen is not a plant, but a symbiotic structure of an algae + a fungi. Cup lichen is just a type of lichen formation that has a kind of vertical cup-like structure.

Real photo via Bernard Spragg

Geology crossover! Go look carefully at some of the whiter walls in the depths—they look like they have fossils of coral and other undersea hard-structured animals in them.

ANIMALS

Sticky lizards: Based on Diplocaulus, a very early (now extinct) amphibian! Their skulls are wacky. We're not sure whether the long sides stood out separately or were smoothly connected to the body by skin flaps, but the separate arrow-like shape is the most popular rendition.

Deep firefly: Might be a stretch because it could just be a multi-winged fantasy critter, but I think the "wings" and antennae are very reminiscent of Anomalocaris, an ancient aquatic arthropod.

Update: Other folks in the notes/tags have pointed out that they're probably based on a cryptid that's especially popular in Japan: skyfish AKA rods! They show up in photos and people think they're an alien lifeform. In reality, they're an optical blur created when a lower quality video captures intermittent flaps of an insect's wings, leaving sort of a many-winged smear in the photo. Thanks to all who left info!

Little frox: Another stretch because it totally could just be a Hinox-like frog, but every time I see the little ones I can't help but think of like...Ichthyostega, Mastodonsaurus, Eryops, and other early amphibians. They were pretty hefty—little frox size or bigger—and had with little waddling legs. This is less "I think it's definitely this" and more "it makes me happy when I picture frox as primitive amphibians."

I haven't detailed many of the scenery animals around Hyrule because most are identifiable with the camera function—it'll tell you that a certain animal is a heron or porgy, for example, and those groups are real, even though the exact species is made up. But I think the pigeons are fun because they're all crested pigeons. Pink-necked green pigeons may have also been the inspiration for the color palettes on the wood and rainbow pigeons.

Both pigeon photos via JJ Harrison, Wikipedia

Spiny bones: Not a specific critter, but those spiny bones that you can find lying around Eldin Canyon are vertebrae—possibly from the same thing that left those big rib cages around? The top spike is the spinous process where muscles attach, the littler spikes on the side are the transverse and articular processes. The dark O in the center is the spinal cord.

Also I made a friend who finally recognizes my purpose in Hyrule.

That's all I've got for now! Will add more as I keep playing.

[feelingautistic]

Contrary to popular belief, not all sharks are carnivorous. The bonnethead shark (a member of the hammerhead sharks) was recently discovered to be omnivorous, including seagrass in their diet.

[linkedin-offficial]

experimenting 🕊️