| 主题：Henrywat 姓名：Henrywat 发布时间：2025-03-23 12:19 |
| 内容：Narwhals may be using their tusks to play, new study finds
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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, according to the latest research.
The narwhal, often referred to as the “unicorn of the sea” in a nod to its trademark tusk, has long remained an enigma. Scientists have observed few int |
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