Rhino horn, bowmouth guitarfish rings—social algorithms facilitate a $23 billion business. In the summer of 2020, Jennifer Pytka spent...

And humans are desperately trying to mimic its properties in boats and swimsuits. Not many people get close enough to a shark to pet it....

On the southern tip of Galiano Island, a diagonal, 28-kilometer-long strip of land suspended off the coast of southern British Columbia,...