ENTMAIN copy 39088020348470 Purchased from the Cullman Endowment. "Spider webs are considered by many to be the most spectacular structures of the natural world. Their designs, their creation, and ...

Otters are playful creatures. They tussle, slide and have been filmed playing piano. But researchers wanted to know why a few species are known to "juggle" rocks—swiftly passing one or more stones ...