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Blog post · Video · 0:45

Dolphins Have Names

THEY CALL EACH OTHER BY NAME

A short from AnimalDex, from How Dolphin Intelligence Works in the Wild. Every claim in it comes from that page, which has the full detail and sources.

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Published 22 October 2026. AI-narrated, with motion added to some images.

Transcript

  1. 0:00THEY CALL EACH OTHER BY NAME. Dolphins have names. And they call each other by them.
  2. 0:03STABLE FOR LIFE. Each one invents its own whistle in year one and keeps it for life. But wait for the hunting trick.
  3. 0:08NAMES OUTSIDE HUMANS. To call a friend, a dolphin copies that friend's whistle. That's a name.
  4. 0:13UP TO 130 kHz. They also see with sound, clicking far above anything your ears can hear.
  5. 0:1870 METRES. From 70 metres away, they can find a steel ball 2.5 centimetres wide.
  6. 0:22SELF-AWARE BY 7 MONTHS. Put ink on one, show it a mirror, and it twists to inspect the mark.
  7. 0:27#2 AMONG MAMMALS. Relative to body size, their brain is second only to yours.
  8. 0:31MUD-RING FEEDING. Now the trick. In Florida Bay, one dolphin whips up a ring of mud around fish.
  9. 0:35LEARNED, NOT INSTINCT. The fish panic, leap over the wall, and land straight in waiting mouths.

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