1. Images from When whale I sea you again?
Featured scientist: Logan J. Pallin from Oregon State University
Funding for the development of this Data Nugget was provided with the support of the National Science Foundation (NSF) under Grant No. PLR Any opinions and conclusions expressed in this material are those of the authors and do not necessarily reflect the views of the NSF.

2. Palmer Research Station in Antarctica
Palmer Research Station in Antarctica. Logan researches humpback whales there from January to April each year.

3. The Western Arctic Peninsula (WAP)

6. Photo by National Geographic
Photo by National Geographic

10. Krill live under sea ice and are the major food source for humpback whales

11. Photo by National Geographic
Photo by National Geographic

12. When whales come up to feed, Logan is able to collect a biopsy sample
When whales come up to feed, Logan is able to collect a biopsy sample. He can tell individuals by their DNA and by the unique markings on their tails. These markings are as unique as human fingerprints.

13. Unless otherwise noted, all photos were taken by researchers at the Palmer LTER site. Photos can be used for educational purposes only.