Do elephants call ''human!''?

African elephants make a specific alarm call in response to the danger of humans, according to a new study of wild elephants in Kenya.

For fish, fear smells like sugar

When one fish gets injured, the rest of the school takes off in fear, tipped off by a mysterious substance known as "Schreckstoff" (meaning "scary stuff" in German). Now, researchers reporting online on February 23 in the ...

Weird and wonderful gadgets wow world's top IT fair

Water-powered clocks, eye-controlled arcade games and pole-dancing robots: this year's CeBIT tech fair, the world's biggest, showcased gadgets ranging from the useful to the downright nerdy.

When warblers warn of cowbirds, blackbirds get the message

This is the story of three bird species and how they interact. The brown-headed cowbird plays the role of outlaw: It lays its eggs in other birds' nests and lets them raise its young—often at the expense of the host's nestlings. ...

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