Zhang: Interaction between science and technology

African Penguin (Spheniscus demersus)
As you can see in the photo above, these penguins all have
bands/tags on them in order to differentiate one penguin from
another. The aquarium workers put these multicolored bands
 on each penguin (it is the technology that is used to label
the penguins). Location: 42.35889, -71.05083