Scientists are tagging basking sharks in Cornwall
The seas around parts of Britain are thought to be home to dozens of basking sharks at this time of year.
However, due to their elusiveness, scientists know very little about them.
With hunting, fishing and climate change threatening their survival, scientists are now hoping to learn more by tagging the huge animals.
Nina Warhurst reports from Newquay.
09 Apr 2015
- From the section UK