Blackwell Publishing
Rates of evolution

A character has been measured in two populations, at two times (13.1million years ago and 15.6 million years ago). The average sizes of the character at the two times are 1.89 and 2.09 respectively. What is the evolutionary rate in darwins? (You may need a calculator that works out natural logarithms.)

a) 0.04

b) 0.08

c) 0.14

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