Echolocation Quotes

“It does appear that some parts of our evolutionary process seem inevitable. It is striking that throughout evolutionary history, the eye evolved independently fifty to a hundred times. This is strong evidence for the fact that the different rolls of the dice that have occurred across different species seem to have produced species with eyes regardless of what is going on around them. Lots of other examples illustrate how some features, if they are advantageous, seem to rise to the top of the evolutionary swamp. This is illustrated every time you see the same feature appearing more than once in different parts of the animal kingdom. Dolphins and bats, for example, use echolocation, but they evolved this trait independently at very different points on the evolutionary tree.”

“Whales feel cohesion, a sense of community, of loyalty. The distress call of a lone whale is enough to prompt its entire pod to rush to its side- a gesture that lands them nose to nose in the same sand. It's a fatal symphony of echolocation, a siren call to the sympathetic.”

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