MAMM copy 39088019510171 purchased with funds from the S. Dillon Ripley Endowment. NZPFRV copy has bookplate: Smithsonian Institution Libraries, Gift of Alan R. Kabat. Introduction -- Getting started ...
Detail view of a cast from the sandstone slab imprinted with more than 70 dinosaur and mammal tracks discovered at NASA's Goddard Space Flight Center in Greenbelt, Maryland. Credit: NASA's Goddard ...
Fresh snow provides an opportunity to observe and identify animal tracks in the woods. Mouse tracks can be identified by their repetitive dot pattern and a thin line left by the tail. While several ...
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