Scotland is one of the most important palaeontological sites in the world for a particular group of animals - the Stem Tetrapods. Just about every land animal with four limbs, from amphibians to reptiles to birds to mammals, derives from this ancient order of beasties, and Scotland is one of the best places to find them in the world.
This particular tetrapod is tiny Eucritta melanolimnetes, whose name means - quite literally - "creature from the black lagoon." Because palaeontologists are nothing if not gigantic geeks. Eucritta was small for this group at only 25cm/10inches, which is coincidentally the size of a large mudskipper. Since I love Mudskipper "fighting" (really just gaping their mouths at each other to show off their gums), I depicted two fiesty Eucritta airing their grievances in this manner, which I'd like to think is traditional among their kind.