How do butterflies mate to form the next generation? Learn about butterfly mating and courtship behavior.

December is a very special month in many countries around the world. No, not because of Christmas. Because it’s baby-making ...

Add Yahoo as a preferred source to see more of our stories on Google. If you suffer from arachnophobia, this is the time of year when you're most likely to run into one of your worst nightmares: a ...

In examining the mating rituals of roundworms, researchers uncovered a unique approach to reproduction that maximizes genetic fitness. Sparks fly when a female nematode meets her mate in a Petri dish.

A provocative study by evolutionary biologists takes on one of Charles Darwin’s central ideas: that males adapt and compete for the attention of females because it is the females who ultimately choose ...

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