Testicles
.
Let's face it, testicles are evolution at its worst. God allowed evolution, fine. But he didn't design these bad boys. I say this after much thought - and after walking the pup in 0 degree wind chill (-15C for you Brits). There are much better design choices for the berries.
.
1) Allow sperm to live at body temperature! Ta-Da. Design flaw solved. Put those bad boys inside where they don't play elevator tag in the cold.
.
2) Make the stuff as you need it! We don't have sweat bags that go expand and contract, do we? No. When we need it, we sweat. It should have been easy to design sperm on the fly.
.
And don't tell me it can't be done. If aerodynamics require, then poof, no bag of tricks. Just think, you never see a Robin or Finch flying around in the heat with his nuts flapping do you? See, it can easily be done!
.
Hey-suz, I hate the cold!
.
(ps - no picture accompanies this post.)