for more of a shallow one i love, i think giant isopods are sooooooo cute i love them theyre so friend shaped

but for an animal i love due to more scientific reasons, i do think chimaeraformes unsurprisingly amazing. they eat mostly invertebrates, and because of that they have that neat adaptation of being able to sense electrical impulses. they have a lot in common with sharks honestly but theyre just so foreign at the same time