I know how it works; it increases surface area and allows more neurons in less space, but why is an efficient method like this necessary? I mean, how is this an advantage? Why don't we just have big heads?
2007-07-19 14:30:13 · 4 answers · asked by Bombenhagel 3 in Science & Mathematics ➔ Biology
Think of the balance thing. As we evolved into bipedal beings, it would have been very difficult for a large headed being to be stable.
2007-07-19 14:36:04 · answer #1 · answered by bronte heights 6 · 1⤊ 0⤋
evolution to bipedalism reduced the amount of surface area exposed to the sun compared to quadrupeds. If our heads became larger that would defeat the whole purpose.
2007-07-19 23:20:36 · answer #2 · answered by Anonymous · 1⤊ 0⤋
Birth canal. Also, the fat head we have takes 20% of our total energy outlay. I could go on for some time about this, but others will add reasons.
2007-07-19 22:01:06 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Larger heads would be a disservice to the makers of caps and hats. It would force them to use more material for those head coverings and would thus reduce the green-ness of the earth.
2007-07-19 21:55:37 · answer #4 · answered by Rich Z 7 · 0⤊ 2⤋