Chapter 18: Right whale
page 270: Balaenidae. The evolution of baleen whales may be linked to the freezing of Antarctica from about 34 million years ago
page 271: Bowheads...have the biggest mouths on the planet. And inside the mouth is a 4 metre (12ft) brain-cooling penis-ish thing, which no one noticed until 2012 or 2013.
page 278: reduced noise. See recent news story Whale benefit from action on ocean noise.
P.S. a "world first" account of a Orcas attacking Sperm whales here.
This is the nineteenth in a new series
of notes and comments on chapters in The Book of Barely Imagined
Beings. It appears around the time of the US publication, and adds to an
earlier series that appeared around UK publication.