And the algorithms were able to identify one species-called Risso's dolphin-by sound alone.

这一算法仅凭声音就能识别出灰海豚这一物种。

These killer whales were seen killing sperm whales, pygmy sperm whales and large Risso's dolphins, as well as scavenging on leatherback turtles.

这些虎鲸捕杀抹香鲸、侏儒抹香鲸和大型里索海豚，并以棱皮龟为食。