Example of one of my adoptable species, Seabies!
THEY ARE A CLOSE SPECIES! and are sold in batches/custom slots through FA and (soon) here :)

❤ Seabies are fairly docile creatures, and tend to feed on small fish/plankton etc (they live in the ocean haha)
❤ In the event of being attacked; however, they use claws/fangs to fight, as well as their gills releasing a poison.
❤ Seabies can hear with their shell ears (they have a hole at the base), and there are four "main" types of shell ears (because they only loosely resemble real-life shells they don't share the same names). From most common to rarest is spiral-shaped, flat, conch/cone-like, and spined. There are more variations, of course, but they are rarer (saved for off-base adopts and customs).
❤ Seabies tails change based on their location - ones born in deep waters have dolphin/shark-like tails, while shallow waters have coral-like structures growing on them and no fin. This is due to the dangers/natural lives of the creatures. Deep water Seabies are more aggressive, and hunt more than their shallow water counterparts.
❤ Tails do not determine where a Seabie will live later in life! They can also live on land, they just need to stay well hydrated.
❤ In terms of the overworld/"Aur'tas" they are high-class sea-life and well respected on the land. They are often called upon for ocean/sea battles against other countries because of their skill with weapons.
❤ All Seabies sport two teirs of fins on their hips that are almost completely useless (they sometime use them to store things in/streamline themselves better but otherwise they're just for looks)

Example Seabie is mine! His name is Pho :)
presentation of species idea was taken from Coynu@FA, Tumblr & Weasyl