Zebra finches can detect variations in human speech
![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2014/05/Zfinches_free.jpg?fit=860%2C460&ssl=1)
Zebra finches can perceive pitch and rhythm changes in humans speech, suggesting that detecting these subtle speech variations is not linked to language.
Niagara Falls Aviary/Wikimedia Commons (CC BY 2.0)