What is the definition of Antrechinus?

Antrechinus is a fun, yet bizarre, genus of extinct, armored, and oh-so-nerd-y, prehistoric mammals that lived during the late Cretaceous period. Picture this: a furry, armored caveman with a superhero cape, except it's more of a dinosaur-armor suit and more of a clumsy, slow-moving, and probably confused look-alike for something called a "quagga" in a 90s movie. They were basically the ultimate 'dinosaur version of a sloth,' except they ran around with their quills and had a knack for getting stuck in trees.

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Example sentence: "Last week, the local paleontologist decided to catch a glimpse of Antrechinus for a photo op, but he ended up getting stuck in a T-Rex's tail like he was in a bad sitcom."

Ah, Antrechinus - the fascinating (or maybe terrifying?) creature of the deep, if one's imagination can conjure it. This term, derived from a misspelling of 'Antarctinus', refers to a bizarre, ghostly-looking, and probably not exactly friendly, fish that dwells in the icy Antarctic waters. Picture this: a translucent blob with eyes that could turn a sunset into a sea of neon green, and the ability to float just above the ocean floor, whispering cryptic messages only the deep-sea jellyfish could understand.

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Edgy example sentence: "The Antarctic expedition's cryptic report revealed they'd stumbled upon an Antrechinus - the fish so ghostly it made the researchers question their life choices and possibly their sanity."