Kristen Lydra

I think these are short-term videos that show a few narwhals at the surface, you know, moving their heads around in the vicinity of a fish. And whether it's play behavior or pursuit of that fish to consume it, nobody knows.

I think these are short-term videos that show a few narwhals at the surface, you know, moving their heads around in the vicinity of a fish. And whether it's play behavior or pursuit of that fish to consume it, nobody knows.

I think these are short-term videos that show a few narwhals at the surface, you know, moving their heads around in the vicinity of a fish. And whether it's play behavior or pursuit of that fish to consume it, nobody knows.

The length of the tusk is closely correlated to the mass of the testes, which are internal. So it's an honest mating signal. And that's why narwhals have a tusk.

The length of the tusk is closely correlated to the mass of the testes, which are internal. So it's an honest mating signal. And that's why narwhals have a tusk.

The length of the tusk is closely correlated to the mass of the testes, which are internal. So it's an honest mating signal. And that's why narwhals have a tusk.

Most of their life is spent underwater in actually very deep water in the darkness. They feed at great depths. So there's so much we could learn if we could, you know, have images or video or something down there seeing their behavior and being able to record it.

Most of their life is spent underwater in actually very deep water in the darkness. They feed at great depths. So there's so much we could learn if we could, you know, have images or video or something down there seeing their behavior and being able to record it.

Most of their life is spent underwater in actually very deep water in the darkness. They feed at great depths. So there's so much we could learn if we could, you know, have images or video or something down there seeing their behavior and being able to record it.