Most mammals are only active after dark, so it’s harder to get to know them than, say, birds, which are active and conspicuous during the day. But you can figure out how mammals like white-tailed deer spend their time by noticing subtle signs of their behavior.

Check out this latest Nature Moments video from Nathaniel T. Wheelwright, Bowdoin’s Anne T. and Robert M. Bass Professor of Natural Sciences.

If you want to make your own natural history observations, The Naturalist’s Notebook by Wheelwright and Bernd Heinrich (Storey Publishing, 2017) provide guidance and a systematic format, with 100% of royalties going to conservation and environmental education.

Watch previous Nature Moments.