Scientist Martin Brogger, biologist specialized in marine invertebrates.
He gave a presentation to the crew about the incredible life that inhabits the bottom of the sea.
The Greenpeace MY Esperanza ship is in Argentina as part of the Protect the Oceans Tour, a year-long pole-to-pole expedition that began in the Arctic and will arrive in Antarctica, to denounce the fishing industry and seek approval from the UN for a global treaty for the protection of the oceans.