Environment shapes dolphin noises

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A wild dolphin in Moreton Bay. Photo: Melinda Rekdahl
A wild dolphin in Moreton Bay. Photo: Melinda Rekdahl

Dolphins appear to change their vocalisations depending on their physical and social environments and level of human interaction, new research shows.


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All News summaries for November 19, 2007

Construction workers unearth mammoth bones in Minsk

6 minutes ago | User rating: not rated yet
Workers building a business centre in Minsk came across the bones of two mammoths thought to be between 25,000 and 45,000 years old, an official from Belarus' Academy of Sciences told AFP on Friday.

Women's access to credit affects efficiency in rural households

18 minutes ago | User rating: not rated yet
Rural strategies designed to induce economic growth often emphasize the need to improve access to capital for poor households. However, this approach implicitly assumes that family members pool all their resources and allocate ...

Colonial heritage metaphors used in US military conflicts

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The historical reference to "Indian Country" presents a complex metaphor. For many Native Americans it signifies home, family, and territory; however, for others the term can refer to colonialism and Native American land ...

Limits on futures trading could boost gas prices, expert says

19 minutes ago | User rating: not rated yet
Proposals to reign in wallet-draining gasoline prices by curbing speculation in oil markets would likely increase costs at the pump instead of trimming them, a University of Illinois economist says.

Modified proteins add colour to research

46 minutes ago | User rating: not rated yet
(PhysOrg.com) -- The subtleties between shades of celery or wasabi green sounds like a debate for an interior designer, but University of Alberta PhD student Huiwang Ai has been exploring those differences ...