A recent analysis of shark attack data in Hawaii  suggests a yearly tiger shark ‘pupping season’ in the fall might be linked with an increase in shark attacks.

Oahu, Hawaii.

Oahu, Hawaii. Image by www.bluewaikiki.com / CC BY-SA 2.0

During the tiger shark pupping season, sharks come closer to the islands to give birth. Pregnancy requires extensive amounts of energy, leaving the sharks close to starvation. Some marine biologists hypothesize that during this period tiger sharks are more aggressive. Since 1980 the months of October and November, which coincides with the tiger shark pupping season, have seen 38 total shark bites and attacks. Just last month, two shark attacks off the coast of O‘ahu featured unusually persistent sharks. Read more: kitv.com