Figure 1: Humpback whale
The question is: what do you use to study the health of whales in the wild?
The answer is: not what you'd think.
Unlike smaller sea mammals like seals or sea lions, it is very hard to obtain blood samples from whales without first killing them.
Meet Karina Acevedo-Whitehouse, from the Zoological Society of London. She studies whale health, but has had to rely on dead, stranded or captive animals for blood samples, which are hardly representative of whales in the wild.
Figure 2: Dr. Karina Acevedo-Whitehouse
So what's the next best thing to whale blood? Well, SNOT,…
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