The Blainville beaked whale is seen around the Canaries
Environment correspondent Richard Black joins researchers on board the yacht Song of the Whale as they look and listen for whales around the Canary Islands.
Beaked whales are probably the least understood large mammals on the planet, but sound can help us track their mysterious movements.
THURSDAY 2 OCTOBER: STAR-GAZING
It was a late start for me today, having been up until the early hours on the night observation shift.
It was a rare chance to spend time with such beauty. But the attractions were very different from daytime.
In the Canaries' pristine air, the skies were bejewelled above our heads - and not just with stars, it seemed, but with the stuff between the stars.
It lay like floating silk on top of the visible world.
My lifelong pursuit, since age 18, has been to live more fully and find wisdom. This has involved studies with Zen masters, Tai Chi masters, and great psychotherapists while achieving my license as a gestalt therapist and psychoanalyst.
Along the way, I became aware of how the planet is under great stress due to the driven nature of human activity on this planet.
I believe that the advancement of human well-being will reduce societies addictive behaviors, and will thus also help preserve the environment and perhaps slow down the effects of global warming and other major threats to the health of human societies.