Tool use in sea otters doesn’t run in the family
![otter with rock](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2017/03/032117_ht_otterticker.jpg?fit=860%2C460&ssl=1)
Sea otters, like this one holding a clam, use rocks to crack open their food. A new study suggests that a propensity for this behavior is not passed from mother to child.
© Jessica Fujii
Sea otters, like this one holding a clam, use rocks to crack open their food. A new study suggests that a propensity for this behavior is not passed from mother to child.
© Jessica Fujii