A population of vegetarian finches (Platyspiza crassirostris) has a mean beak depth of 15 mm. During a drought, only plants with small fruit that require deep beaks to eat are available, so the finches that survive have a mean beak depth of 12 mm. The next generation, a biologist measures the offspring of the surviving finches and finds that their mean beak depth is 13 mm. What is the heritability (h2) of beak depth, to two decimal places?.

1. A population of vegetarian finches (Platyspiza crassirostris) has a mean beak depth of 15 mm.
During a drought, only plants with small fruit that require deep beaks to eat are available, so the
finches that survive have a mean beak depth of 12 mm. The next generation, a biologist measures
the offspring of the surviving finches and finds that their mean beak depth is 13 mm. What is the
heritability (h2) of beak depth, to two decimal places?