A Formica ant suspends a drop of aphid honeydew between her mandibles (which bristle with 7 or more teeth), as she drinks it. 
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Question for readers to answer:

Macaque monkey,  Crab-eating macaque (Macaca fascicularis) in Lopburi, Thailand.  Photo courtesy of 'Chris huh' and Wikipedia.

If a human yawns in front of a monkey, will the monkey yawn?

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Interacting with nature by K:

How to Offer Wild Birds Shelter in the Winter

Not all birds migrate south for the winter.  Winter is a hard season for birds, and many risk freezing to death at night. It doesn't take much effort or money to provide shelter for them, and it can make a huge difference to the little feathered guys!

More Articles >>

 

 

Stone Age man invented the bow

Q: When was the bow and arrow invented? I have been told it was invented less than a thousand years ago?

A: A simple bow is a slender, straight-grained wooden shaft tapered from the center to each tip and bent into an arc by a cord shorter than the wood. An inspired Stone-Age man invented it and became the most efficient hunter on Earth. Flint arrows date back 25,000 to 50,000 years ago but no doubt men made arrows without stone points for untold ages before that.

Right: [SARC, Univ of Oslo] The simple bow

"Certainly by the upper Palaeolithic [Age] (c. 30,000 to 35,000) we have smaller, pointed tools with impact damage consistent with use as arrow points-- though not all small, pointed tools are arrow points as is often assumed," says archeologist Roger Grace of the University of Oslo, Norway.

The earliest archeological evidence comes from Western Europe sites dated about 40,000 years ago. Later, in 30,000 B.C., artists left cave paintings of the bow and arrow.

"Material evidence for bows and arrows, i.e. remains of bows, are not found until the Mesolithic [Age] (c.10,000) but that is a matter of preservation," continues Grace.

(Answered by April Holladay, science correspondent, June 20, 2001)

Further Surfing:

SARC, Univ of Oslo: Stone tool technology

 

 

 

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