The Brazilian city of Recife is under siege as its sharks have suddenly become man-eaters. Using evidence left by the sharks' jaws, a team of scientists uses these clues to unravel the mystery of Recife's golden coastline.
By entering your email address, you agree to our Terms of Use and acknowledge the Privacy Policy. discovery and its affiliates may use your email address to provide updates, ads, and offers.
To withdraw your consent or learn more about your rights, see the Privacy Policy.