Ear wax in a whale builds up in layers, like tree rings, over time and records chemicals encountered by the whale over time. Continue reading →
via Discovery News http://news.discovery.com/animals/whales-dolphins/whale-earwax-tells-of-short-dirty-life-130917.htm#mkcpgn=rssnws1
via Discovery News http://news.discovery.com/animals/whales-dolphins/whale-earwax-tells-of-short-dirty-life-130917.htm#mkcpgn=rssnws1
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