00:03
Okay, so for this question, we're looking at mammals and their reproduction methods here.
00:17
So all mammals practice internal fertilization.
00:29
So they don't have external fertilization where they would spawn their eggs and sperm in order for fertilization to occur.
00:49
So most of the animals retain the developing embryo for some time in the reproductive track.
01:15
So we have therians, and therians can be marsupials.
01:34
So these are like our pouched kangaroos.
01:39
So they develop for a shorter period of time.
01:41
The development finishes in the pouch.
01:43
We have placentals characterized by a placenta, where the organism or mammal fully develops internal and then is born.
02:09
Another group that we have is called protherions, prototherians.
02:21
These are our monotrons.
02:25
And these organisms or mammals actually lay eggs still.
02:45
So for our question, monotron is different from other mammals in that they do not produce milk.
02:51
That is not true...
