First-of-its-kind footage reveals 3 endangered sharks mating—all at the same time
Scientists say the video offers a unique look into shark mating behavior—and might also help with conservation efforts.
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Annie Roth
09:20
These tarantulas may have evolved huge genitalia to fend off bloodthirsty females
Tarantulas, like all spiders, don’t have penises; they have palps. And these ones are massive.
