Marrow

it/its

good swimmer, can hold its breath for over 15 minutes

nonverbal, knows sign language

has a monster form it can transform into when it feels threatened or needs to fight

Drawing notes:

 - tiny paws! arms taper down into them

 - pretty short fur except for scruff

 - ears split into two points at top

 - mouth is rarely visible

 - you can draw it in normal or monster form!