Southern right whale moms and calves may whisper to evade orcas
Quiet calls could help the animals keep close without broadcasting their location to predators
![right whales](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2019/07/071019_CW_right-whale_feat.jpg?fit=860%2C460&ssl=1)
WHALE TALES The vocal repertoire of southern right whales includes quiet calls that may help mothers and calves stay in touch while hiding their location from predators, a study finds.
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