#insects
Questions about “insects”.
2 articles
What are a zebra’s stripes for?
On an open savanna, a bold black-and-white coat seems made to stand out. After puzzling scientists for over 150 years, the mystery is yielding a surprising answer.
Why does the sensitive plant fold up when touched?
Touch it with a fingertip and its leaves fold shut, then the whole stalk sags as if bowing. What is this unusually quick-moving plant doing it for?