Friday, August 19, 2016

Zebra finch 'heat song' changes hatchling development

When the weather is hot, zebra finches in Australia sing to their eggs - and these "incubation calls" change the chicks' development, a study has found.
The surprising discovery suggests that the birds are preparing their offspring for warm conditions after they hatch.
Scientists collected eggs and incubated them in controlled conditions, playing recordings of the incubation song.
Compared to a control group, hatchlings that received these calls grew more slowly and coped better in the heat.
Writing in the journal Science the researchers say this is the sort of adaptation that could help animals acclimatise to rising global temperatures...[Read more] 

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