Unprecedented! OOOOH this is great!
UNION RAYO: GOODBYE TO DECADES OF ASSUMPTIONS : GINKO BEAKED WHALES
Excerpt: For the first time in history, a team of scientists managed to see, record and document the elusive ginkgo-toothed beaked whale (Mesoplodon ginkgodens) swimming in open sea, off the coast of Baja California, Mexico. And the best part is that with this encounter they also solved a mystery that had been puzzling experts for more than a decade, a mysterious acoustic signal, the famous BW43, that no one had managed to attribute to a specific species.
.... For the first time, a species known only from stranded remains was alive, recorded, confirmed!!! Now scientists can track this species without seeing it, just by listening to its signals in the ocean.
Battles, wounds and sharks
The ginkgo-toothed beaked whale has a distinctive feature and it is that the males develop two flat leaf-shaped teeth near the tip of the snout. They do not use them to eat, but to fight with other males for the females.
The photos show long scars, cuts, white lines, many battles on their backs. In addition, many had circular bite marks made by sharks called “cookie cutters”.

