One Weird Trick Female Animals Use to Control Who Gets Them Pregnant

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Much like the United States Congress, the history of science is overwhelmingly white and male, and unsurprisingly, this has led to a pretty significant lag time in scientific understanding of things that relate to women. When it comes to animal sexual selection, we know a lot about how and why males compete for female… » 2/19/15 4:49pm 2/19/15 4:49pm

This African fish can start having babies at 17 days old

The catchily named Nothobranchius kadleci is the fastest-maturing vertebrate species known to science. In just over two weeks, this fish can reach sexual maturity and start laying eggs — and those eggs only need another 15 days before they are ready to hatch. So why does this species need to cram an entire generation… » 9/08/13 11:00am 9/08/13 11:00am

New research suggests women can make sperm, and men can make eggs

What started as an investigation into developmental mouse biology has become a lot more than that. Biologist Katsuhiko Hayashi discovered a way to turn mouse skin cells into sperm and egg cells — and actually used these modified cells to create a living baby mouse. The question is, can it work in humans? » 8/21/13 4:26pm 8/21/13 4:26pm

Bees pay a steep price for that whole "perpetuating the species" thing

If you're going to be reborn as a worker bee, make sure you don't do it in the summer. That's the time of year when the queen bee demands the most jelly to feed her young, and once that work is done, bees typically die just two weeks later. But in winter, otherwise identical bees can live six to seven months, which… » 4/21/13 5:00pm 4/21/13 5:00pm

Why male bats take the high road and female bats take the low road

Daubenton's bat is found throughout Eurasia, its habitat stretching from the United Kingdom to Japan. But as one northern English population reveals, these bats divide their space along strict gender lines, with males living up the bachelor existence at high altitudes while females raise their young at low… » 1/27/13 4:00pm 1/27/13 4:00pm

Singaporean ad campaign promotes sex in this awkward music video

In the dystopian future, as the human population plummets, we'll need PSAs to remind us to get laid. Apparently that future is here, at least in Singapore, a nation whose birth rate is one of the lowest in the world. Now a local ad agency, with the help of Mentos, is trying to jumpstart a baby boom with this vaguely… » 8/08/12 4:01pm 8/08/12 4:01pm