Tagging Yellowfish

[E.T.]

Have you ever stopped and wondered what can be learned from such a telemetry study and how important it is?

Dead sure Korra, but my car's tracking device is smaller than that thing on the Yellow's back.

We live in 2012, surely something smaller should be able to do the job

Something that won't let the fish look like the Humpback From Snotterdam