4 ms·
Almost anything is possible. I think a major constraint to evolving intelligent life is the fact that it requires large heads, which make birth difficult. The m
by gweinberg 12y ago
Almost anything is possible. I think a major constraint to evolving intelligent life is the fact that it requires large heads, which make birth difficult. The marsupial solution of giving birth to very small underdeveloped babies and completing development in an external pouch soleves this problem nicely. Also, hopping motion is more efficient than our clumsy walking, and leaves the upper limbs free to develop into hands for tool use. So I think it's likely that most intelligent life forms in the universe are basically kangaroos.
That doesn't answer the question of where they are, though.
- maxerickson 12y agoI'm trying to figure out if there is a good reason for the mammalian birth canal to go through the pelvis, without much luck. If that routing is not advantageous, birthing problems would only come up when it happened to be prevalent on that planet.
- Joyfield 12y agoSpawning only a few babies as "we" do it is important to only spawn healthy babies. The first test is the "great swim" of the sperm. The second is the health of the mother in the next 9 month and the "last" one is surviving birth. This making only the fittest/suitable survive. And that is why "routing" it something hard makes sense.