04.11.2026 – Languages

Today brought a remarkable day of marine wildlife sightings, with bottlenose dolphins (Tursiops truncatus) and short-finned pilot whales (Globicephala macrorhynchus) observed throughout the day.

Seeing these two cetacean species in the same marine environment offers a fascinating opportunity to appreciate their social behaviour and complex communication systems.

Bottlenose dolphins are highly social animals, using a combination of whistles, clicks, burst-pulsed sounds and body movements to communicate. Short-finned pilot whales also rely heavily on acoustic communication, producing whistles, clicks and pulsed calls that help maintain group cohesion, coordinate movements and support social interactions.

Although both species have sophisticated communication systems, they use different vocal repertoires. When travelling or interacting in the same area, they may detect and respond to one another’s acoustic signals. Their presence together raises interesting questions about interspecies awareness, social tolerance and communication in the marine environment. However, direct communication between the two species has not yet been conclusively established.

Today’s sightings were a beautiful reminder of how interconnected marine ecosystems can be, and how much there is still to discover about the social lives of cetaceans.

Two species, two distinct acoustic languages, and one extraordinary day at sea.