91色情片
Zap testes with ultrasound for temporary ‘vasectomy’
Could exposing men's gonads to ultrasound provide people in poor countries with a cheap, non-invasive alternative to a vasectomy?
News
Environment
Virgin birth: sharks’ secret survival trick
News
Humans
It’s raining males, if you’re a buffalo
News
Environment
Zoologger: The most bizarre life story on Earth?
News
Humans
How female wallabies boost their males’ testosterone
News
Humans
Male crayfish turned on by urine
News
Humans
Zoologger: The world’s most promiscuous鈥� snail
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Environment
Post-coital warfare: insect semen kills rival sperm
News
Humans
Women with good genes may have more sexual partners
News
Humans
Dirty tricks of the egg and sperm race
You might think the battle of the sexes is over once mating occurs 鈥� but it's just shifted to a new, microscopic arena
Features
Humans
Even in the virtual world, men judge women on looks
News
Humans
My big fat geek wedding: Tears, joy and oxytocin
Features
Humans
How to put science into romance
Opinion
91色情片
The secret of a sperm’s wiggle
News