Look up the definition of "Caudal"
I did. Did you?
caudal
[ kawd-l ]
adjective
Anatomy, Zoology. of, at, or near the tail or the posterior end of the body.
Zoology. tail
like: caudal appendages.
Maybe you need to look up what "tail
like" means, or perhaps the meaning of proximity. Or heck, just look up the word "tail."
noun
the hindmost part
of an animal, especially that forming a distinct, flexible appendage to the back end of its body.
This is appalling ignorance.
Goodness, talk about the pot calling the kettle....
Let's back up a tad, according to the OP's video, this comedian (and obvious moron), Ben Glieb, asserts that humans don't have tails -
ergo, fetuses (or embryos)* with tails aren't human.
That's his argument - fetuses (or embryos) can't be human because they [supposedly] have tails.
This is also how how he traps and embarrasses Kirk - by showing him a dolphin fetus (or embryo) - which trap, btw, consists of his assertion that the fetus with the tail IS A DOLPHIN (but of course, fetuses (or embryos) with "tails" aren't human until such a time as they apparently lose their tail, at which time they are now human... or some such nonsense as that)
So you tell me, how does that which isn't human because it has a tail - how does a tailed, non-human become human?
...and btw - how do you not find this argument of Glieb's utterly appalling? How? Merely because he happens to believe in abortion like you do?
FWIW- THAT would be genuinely appalling.
*Glieb's logic sort of equates the two, as does yours so I'm going to play along and say the difference is one without substantive distinction.