But what exactly narwhals do with these tusks is still being studied, and scientists say they may have observed a previously undocumented use for them: play ... fish appeared to be “like a cat ...

(CNN) — Scientists say they have the first recorded video evidence of ... between narwhals and fish, they realized these scenarios were more similar to a cat-and-mouse game, in which the animals ...

Scientists say they have the first recorded video evidence of narwhals using tusks not only to strike and manipulate fish during feeding but also engage in what appears to be playful behavior, ...