Τετάρτη 7 Μαΐου 2014
Top 10 free things to do in Rome
A holiday in
Rome can mean expensive tickets for tourist attractions, but the eternal city
has museums, music venues, markets and cinemas that can be enjoyed for free
• Is there anything we've missed? Tell us your
favourite free things to do in Rome in the comments below
Κυριακή 4 Μαΐου 2014
Liar! Liar! African bird uses elaborate ruse to steal
food
(Reuters) - If you believe honesty is the best policy,
you would have a hard time convincing the forked-tailed drongo. This tricky
African bird is the pathological liar of the animal kingdom.
Scientists described on Thursday how this medium-sized
bird brazenly deceives other animals by mimicking alarm calls made by numerous
bird species - and even meerkats - to warn of an approaching predator in a ruse
to frighten them off and steal food they leave behind.
The researchers tracked 64 forked-tailed drongos over
a span of nearly 850 hours in the Kalahari Desert in South Africa close to the
Botswana border to unravel this unique behavior.
Nightingale has best birdsong because of its complex
brain, research finds
Secretive bird produces more notes than other species,
according to study that sheds light on human language
No wonder they celebrated it in a song. The common
nightingale is top of the feathered crooners, according to research highlighted
on International Dawn Chorus Day that suggests the bird's impressive vocal
range is down to the composition of its brain.
The secretive bird, immortalised in the romantic 30s
song A Nightingale Sang in Berkeley Square, produces far more notes in its
birdsong than other species, according to research carried out at the
University of Bath and Cornell University.
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