Cesium is a highly reactive alkali metal. It’s high toxicity generally means its use is limited to atomic clocks and as a drilling lubricant (as a liquid alloy). It will react with water at even very low temperatures, which means care has to be taken in its use.
Brown Bears are large omnivorous mammals. They are capable of putting on a huge amount of weight to hibernate through winter months, eating almost anything. Encroachment of human habitation has led to more encounters with the creatures in the search of enough calories to last the winter. They can easily kill a man, if so inclined. Their hunger and danger makes them a good match for cesium.
Barium is a highly reactive element that is in general not found in nature. It’s mostly used for processing esters, x Ray contrast and making endothermic reactions. It’s actually often forms insoluble salts that don’t react with water, which makes pairing it with water creatures a little unusual. I couldn’t though go past the silly pun, so.
Barramundi also known as Asian sea bass and Australian sea bass. It’s a very highly sought after fish for fishing and as food. Though it is flakey and often has low flavor it’s often cooked with various flavors such as lime and garlic, and is a favorite fish for curry. It’s a undergoes sequential gender variation, changing gender often after one or two seasons as a adult male to adult female.
Iodine is a slightly rare halogen element that is highly reactive and somewhat toxic. Though it is also essential to life, is required for the synthesis of thyroid hormones. It is also heavily used in the treatment of endocrine and thyroid cancers and in antiseptic treatments.
The red lionfish is the largest of the lionfish. Its toxin relates it to iodine, as it’s not fatal to humans necessarily. The red lionfish is invasive in the Caribbean and other tropical Atlantic environs. It’s become a major pest in some areas, its capacity to breed quickly and lack of predators makes it particularly hard to control.
One of the most famous Nobel gasses Xenon is actually uncommon in Earths atmosphere. It’s mostly used in lighting, lasers and as a propellant in ion thrusters.
Geese are one of the largest birds species. Most are capable of flight and are migratory, though there are a few exceptions. There used to be giant flightless geese, most are now extinct. It is connected to Xenon by its flight and slightly uncommon nature.
Yellowhead catfish (Tachysurus fulvidraco) also known as the Korean Bullhead can be found throughout most of northern Asia. It’s not to be confused with the American Yellow Bullhead. The former being a scaled bagrid catfish.
Antimony is a silver colored metal that behaves very much like lead and phosphorus though it is less explosive and as a used as a halogen as a fire retardant. It’s also used in the production of batteries, soldiers and bearings. It’s connection to the Yellowhead catfish is to do with the local of its main source, being mostly found in China and Korea.
Latrodectus tredecimguttatus is a spider that is related to the Black Widow and the infamous Red Bellied Spider. Though its main place of home is in the Mediterranean coastal grasslands and forested area in Europe. It’s name literally means of thirteen spots, and has 13 red, white or orange spots on its body.
Tellurium is a silvery metalloid that can be somewhat toxic. Mostly used for copper and steel alloys and the production of solar panels. It’s now in far higher demand than ever and as it is a rare metal its likely to become even rarer. It’s relation Latrodectus tredecimguttatus is through its relative rarity and usefulness, but mild toxicity.
Indium is fairly toxic but very useful element whose main use is in LCD monitors and similar screens such as those used in mobile devices, TVs, and other liquid crystal displays. It’s also used in bearings and vacuums tube chambers. The glowworm is similar to Indium in that it’s glowing effect comes from its food (so electricity and crystal bonds in Indium case) to produce photosynthesis. Though most glowworms are omnivores, a few are carnivores, using their colonies of glowing bacteria in their rear to attract moths and insects to a long thread of silk like a spiders web, then eating it at their leisure.
Tin is a useful binding metal that has been used for centuries. Its widespread use has mostly been applied in making Pewter and in Solder. It’s fairly non toxic and has one of the most numbers of isotopes of any metal. Vipera Latiffi is a viper that lives exclusively in Iran, and it’s associated with Tin as its highly likely the Tin was discovered and first used near its native range.
The Dodo is famous for being the bird that became extinct. Gallium does not occur as a free element (only as an alloy, usually with zinc or aluminium in bauxite) and is a reasonably soft pliable metal. It’s used in most consumer electronics in semiconductors. Why do they belong together? Gallium is also used to keep the crystal structure of plutonium stable. Plutonium has limited uses, expect in nuclear medicine and thermonuclear bombs. Without gallium, we wouldn’t be able to keep thermonuclear weapons stable. Also, we would likely be less close to mutually assured destruction.
Germanium is a hungry element much like oxygen or carbon; it forms binds to a high number of other elements. Thus a boar is a good match for this element.
Sodium’s elemental is Na. The science memes that have been all around the Internet will tell you that “Na Na Na NA NA” will or should be immediately followed by “Batman!”. This is pretty much the only connection I have. A bad pun will always win with me.
Magnesium is a relatively volatile easily oxidized element that is relatively abundant as alkaline metals go. As vipers make up one of the most abundant species of snake, it seemed to be a good match. Some Vipers spit venom; some inject it with their bite. Quite a few give birth to live young, a rarity in reptiles. Though none exist in Australia despite our reputation for venomous reptiles, most of our venomous snakes are Elapidae but not true vipers. Some even belong to a “viper like” family that is possibly a sign of some convergent evolution (though a biologist might tell me I am wrong here).