Howdy! Here's a peculiar and mysterious little cutie. I had a fun time drawing this one! :3 It's called the Chambered Nautilus! Chambered Nautiluses aren't studied that much in terms of population, so data is deficient when looking for a solid answer if they are endangered. One thing we know though is that the shell trade is decreasing their population. =QwQ=
Chambered Nautiluses are mollusks, and are related to squids, octopi, snails, and slugs. They are a happy little ray of adorable clumsy forgetful sunshine! They rely on jet-propulsion to shoot themselves forward in the water. They are slow and lumbering, otherwise. They are also VERY forgetful, unlike their A+ scoring cousins. Scientists trained some Chambered Nautiluses to anticipate snacks whenever they saw a flashing blue light, and got excited and spread their little noodle-tentacles out, waiting for the delicious treats to be plopped into their tank. The next day, however, they did not seem excited, anticipating rewards, or spread their tentacles to prepare to grab small treats when they saw the light. Nope! They had to re-learn the whole thing that day...
Guess why the Chambered Nautilus got its name? In its shell, it has many air-filled chambers! When they are itty-bitty-little-noodle-shell-pasta-cute-little-funny-adorable (and did I mention little) babies, they only have four chambers. As they grow, they develop more towards an average total of 30. The chambers have a mixture of air and water, and the 'siphuncles', or tubes of tissue, regulate how much is inside the chambers. That helps them float and sink!
Well, that's all for today guys! Stay warm this... evening? Day? Night? Morning? No time at all because you are reading this from inside a black hole? Well, anyways, cya soon! :>