I have often thought this.
3 years of a Zoology degree later I am still no nearer a satisfactory explanation.
Woo, yay, and a scientific houpla!
(
barryheadwound Mul-ti-pass? Multipass!,
Thu 26 Feb 2009, 13:49,
archived)
yay!
even actual scientists are baffled!
(
enceladus,
Thu 26 Feb 2009, 13:50,
archived)