Why did so many
ancient sharks disappear? Think evolution — change over time. Animals
who live in the same environment compete for food, shelter, mates.
Those who are most successful win. That means they reproduce and
pass their genes on to their offspring. What do you think happened
to the sharks featured on these pages? Are their offspring around
Join the Discovery
expedition to the Falkland Islands in search of the fossil remains
of the ancient sharkPucapampella.Tour
the ancient seasto meet some ofPucapampella'sclosest
friends. Or visit theprehistoric
shark galleryfor illustrations of sharks beyond your imagination.
Think about the
for instance, with its strange spiral jaw full of teeth. How might
those teeth have come in handy on the high seas? Why might theHelicoprionand other ancient sharks have lost out in the game of evolution?
Think of yourself as a virtual scientist and consider how these
ancient sharks differ from the sharks of today.(Use your browser's back button to return to the school site)
Visit Discovery.com's main site to learn more about this expedition: