Gorillas Groups Species Whaling 
4 The Love Of Animals
MARCH 17, 2011
Elephants, whales, hippopotamuses, giraffes, and alligators use low-frequency sounds to communicate over long distances, often miles; and bats, dolphins, whales, frogs, and various rodents use high-frequency sounds to find food, communicate with others, and navigate. A Grateful Whale.
10,000 Birds
JUNE 27, 2018
There are important details within that dictum that we will ignore here, but this has to do with knowing when a characteristic doesn’t really tell you about the relative position of species on a “tree of life” vs when the characteristic works for that purpose. That was useful, and it is still useful, even if there are often major exceptions.
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