The human female and her minions managed to make it through the first semester of new labs for Biology 111. Now they’re facing all new exercises for Biology 112. This course deals with evolution, phylogeny, and the many and varied organisms that inhabit this realm. The instructor, with an eye to relating one notion to another, has planned an exercise in which the students will examine various vertebrate skulls and use their features, coupled with gene sequences, to come up with a vertebrate family tree. It sounds both cutting-edge and ghoulish, and I must admit to being intrigued.
Sigyn, the human female says the skulls have arrived and are in room 313. Let us see what has come!
That is a veritable plethroa of crania! And they’re from some outfit called “Skulls Unlimited.” Snort. Of course they are. I shall call them the Purveyor of Head Bones.
Some of the skulls are quite tiny. This one is from something called a shrew.
Sigyn is surprised at how tiny it is. But as you should know, my diminutive princess, size is no indicator of fierceness. A look at the teeth will reveal just what voracious predators shrews are.
The rat skull, on the other hand, just has long, orange incisors.
And, according to Sigyn, “the cutest little molars ever!”
While the turtle has no teeth at all,
though its bony jaw is quite capable of snapping up its prey.
Still, it is not always the carnivores that one needs to watch out for–
Turn my sweetie loose this instant, you perfidious cervid! Hang on, dearest, Loki’s coming!
Apparently white-tailed deer are not above a little snacking when the morsel is especially tasty.