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Humans

Biological baloney: The flaw in US anti-gay marriage arguments

US states defending same-sex marriage bans say the ability to procreate naturally dictates wedding rights. This is irrational, says William Saletan

Comment

Vampire feeds on decaying matter and spawns eggs in batches

Life

Vampire feeds on decaying matter and spawns eggs in batches

News

There's no such thing as a sex drive

Life

There's no such thing as a sex drive

Opinion

Life

Moths remember their first time

News

<i>The Nether</i>: Real morality for a virtual world

Humans

The Nether: Real morality for a virtual world

CultureLab

Zoologger: Oral sex may be a life saver for spider

Life

Zoologger: Oral sex may be a life saver for spider

News

Cuttlefish sex looks like twisted underwater embrace

Life

Cuttlefish sex looks like twisted underwater embrace

Regulars

Rules of attraction: 10 biggest love myths exploded

Humans

Rules of attraction: 10 biggest love myths exploded

Features

Polar bear penis bone may be weakened by pollution

Earth

Polar bear penis bone may be weakened by pollution

News

Mice evolve better, not bigger, balls in sperm race

Life

Mice evolve better, not bigger, balls in sperm race

Size isn't everything. When many male mice mate with the same females, their descendants evolve testes that can produce more sperm

News

Life

Zoologger: Spider has sex, then chews off own genitals

News

Technology

Romance algorithm predicts if you'll be lucky in love

News

Life

Female ejaculation comes in two forms, scientists find

News

Health

A date with disease: Get the app, risk the clap?

Features