The world’s oldest known fossilized sperm has just been discovered in a 50-million-year-old worm cocoon from Antarctica. Continue reading →
No mate? No problem for a free-living flatworm that shoots sperm into its head to fertilize itself. Continue reading →
A song produced by male nightingales communicates dad skills to attentive, listening females.
KFC is suing three media companies in China over rumors that they use eight-legged chickens.
Australia's invasive cane toads are tough to kill, so researchers tried making toadsicles: it's humane and effective, they say.
The clouded leopard babies were abandoned by their mother, so the zoo's vets have taken over their care.
Birds click their bills with great rhythm -- but why?
Giant panda Mei Xiang was artificially inseminated a few weeks ago and could give birth in the next six months. Or not.
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