Seeing, hearing the beaked whales
A beaked whale is any of at least twenty species of small whale in the family Ziphiidae.
They are one of the least-known families of large mammals: several species have only been described in the last two decades, and it is entirely possible that more remain as yet undiscovered. Six genera have been identified.
Whilst sailing (or drifting as we were at the time) from Portugal to Lanzarote we enjoyed the company of these two beautiful beaked whales for most of the afternoon and early evening. One was a lot more curious than the other.
Three of these, Indopacetus, the Hyperoodon and the Mesoplodon, are united in a single subfamily, the Hyperoodontinae.
Beaked whales are creatures of the ocean deeps, feeding, so far as is known, on or near the sea floor. They have an extraordinary ability to dive for long periods—20 to 30 minutes is common, and 85 minute dives have been recorded—and to great depths: 1,899 metres and possibly more.
Blainville's beaked whale.
Image courtesy of Victor Gonzalez Otaola, University of La Laguna, taken under permit from the government of the Canary Islands.
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.
MONDAY 29 SEPTEMBER: FIRST SIGHT
http://news.bbc.co.uk/2/hi/science/nature/7634123.stm

















