Historical Mercury Pollution: Tree Rings Have the Receipts!

Mercury is a troublesome pollutant in the environment and while we know a lot more about where sources are today, we don’t know as much about where sources were in the past and how high pollution levels were. Luckily, trees can help us to figure that out! Using traces of mercury pollution stored in tree rings, scientists try to see how mercury pollution levels have changed as we’ve become more industrialized.

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Dumpster diving diet: city rats have higher protein diet distinct from other rural mammals

Rats have shared our cities for a long time. Because of this they can be used a model to learn more about how animals colonized cities and what features of cities can be advantageous for some species. A new study focuses their attention on whether 19th century city mice had an advantage over their rural neighbors. Read on to find out more!

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