Alligators move lungs to catch prey: ALLIGATORS use their lungs as movable internal flotation devices, enabling them to dive, veer and barrell roll through water after prey. [Australian]
Song-Learning Birds Shed Light on Our Ability to Speak: A new study may have been for (and about) the birds, but it also hints at how humans may have developed the ability to speak, potentially paving the way to one day to identifying the causes of speech deficiencies. [Scientific American]
A Sand Dollar Riddle: The defense mechanism of sand dollars against predators is literally to split themselves in two, new research indicates. [NYT]
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