Superb fairy-wrens teach their eggs a ‘secret password’ that the young can sing when they hatch. Those that sing the password get food, and the brood parasite eggs (which don’t learn the password) go hungry.
from Crazy Facts http://ift.tt/1KGJ7Eg
Sunday, 8 March 2015
Superb fairy-wrens teach their eggs a ‘secret password’ that the young can…
from Crazy Facts http://ift.tt/1KGJ7Eg
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