Answer the following question: Facts: - website: -lsb- http://www.ryan-johnson.org ryan johnson homepage -rsb- - residence: mossel bay , south africa - spouse: fiona ayerst - children: finn johnson - birth date: 30 january 1977 - name: ryan johnson - image: ryan-johnson . jpg - birth place: tauranga , n.z. - alma mater: university of pretoria - occupation: marine biologist , television host Based on these bullet points, write a short biography describing the life of ryan johnson -lrb- marine scientist -rrb- .
Answer:
ryan johnson -lrb- 30 january 1979 -rrb- is a marine biologist specializing in researching sharks .he is best known for the shark documentaries that he features in and hosts .