chordate

For example, it is unknown what role the direction of the sperm's entrance has on the development of a chordate embryo.

Pain on a chordate might be comparable to pain in humans, with some exceptions like the Octopus (maybe) but that's about it.

None of our communication systems come close to what is found in the various control/communication systems found in even the simplest of chordate organisms.

A interesting footnote is the presence of possible chordate animals yet in that fauna (we are chordates as any other vertebrate).

Though this doesn't affect the chordate vs.

They are chordates (they have a spinal cord, just no backbone for it), so I could expand my definition to any chordate that isn't a tetrapod.

If you actually went back and looked at my discussion, I simply gave an example of chordate structures being beyond anything artificial constructs that we make.

So we successively meet other hominids, primates, non-primate mammals, non-mammal chordates, non-chordate animals, etc etc, each with many different sub-divisions.

Pyrosomes look so bizarre compared to a layman's notion of what a chordate should look like because they are colonial aggregations of lots of individual adult tunicates that have resorbed their notochords (I'm pretty sure that's the case, despite what the photo description says).

When I hear that an animal can regrow its head, I think of a head in the chordate sense, as in "a hardened container of some kind with a brain and complex sensory organs embedded in it." Spoiler alert: the creature in this article does not have a "head" in this sense.

The Unicode Consortium is in the pocket of Big Chordate.