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Science News for November 29, 2013


The more the better!

Researchers from Bielefeld University and TU Braunschweig found that female fire salamanders can store sperm from multiple males, leading to increased offspring numbers and fitness. Polyandry appears to be a key mechanism for reproductive success in this species, contradicting the long-held assumption of monogamy.

SourceBielefeld University·JournalMolecular Ecology·DateNov 29, 2013

Strong dollar means cross-border shopping heavily influenced by exchange rate

A new study from University of Toronto researchers found that a strong dollar significantly influences Canadian cross-border shopping habits, with distance to the border also playing a crucial role. The research suggests that Canadians are more likely to shop in the US due to the favorable exchange rate and proximity to the border.

SourceUniversity of Toronto·JournalThe Review of Economics and Statistics·DateNov 29, 2013