00:02
All right, so it says humans and baboons have noses with nostrils to face downward, but many other primates have noses with nostrils that face to these sides.
00:10
Humans and baboons are more closely related to each other than other primates with outward facing nostrils.
00:15
Therefore, the fact that both humans and baboons share the downward facing nostril orientation would be an example of, and we have shared derived trait, analogy, unique derived trait, or homology.
00:26
And so that is most likely going to fall under the category of a shared derived trait because of the common connection that is there.
00:36
Moving on to the next one, let's see.
00:39
We are identifying whether these traits are analogies or homologies.
00:44
So remember, analogy would be that they kind of do the same thing but don't necessarily look similar to each other.
00:50
And then homology would be that they look the same but don't necessarily have to do the same thing.
00:56
So dolphins and sharks have fins.
01:00
That is more homology.
01:02
So there's a similarity in structure.
01:04
And yes, they do the same thing, but they also appear to be very similar to each other.
01:09
E, horses and zebras have hooves...