Another must-read:
Beyond Words : What Animals Think and Feel
by Carl Safina (New York: Henry Holt & Co, 2015; ISBN 978-0-8050-9888-4; 461 pages)
Four sections: elephants, wolves, (mostly) dogs, killer whales. The last may make you wish you were a different species.
When dolphins were the planet's brain leaders, the world didn't have any political, religious, ethnic, or environmental problems. Creating problems seems to be one of the things that "make us human."
