Cod Almighty! Atlantic Cod may be Five Species
“Researchers have conducted a genetic analysis of more than 6,000 Atlantic cod from different regions of the ocean, using DNA markers. They found that the cod clustered into five distinct groups, based on their geographic origin and migration patterns. These groups showed little or no evidence of interbreeding, suggesting they are reproductively isolated and may…
Birds of a Feather Learn Together
“Researchers have found that superb fairy-wrens can learn to associate unfamiliar sounds with danger through social learning. The birds were played a computer-generated “buzz” as part of a chorus of alarm calls from other bird species. By the end of the training period, 80% of the birds flew away and hid if they heard the…
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