Question

How were webbed feet in swimming birds explained under Lamarck's evidences?

Options

• Developed due to continuous creeping through narrow crevices

• Developed by stretching skin between toes

• Developed from running on hooves on hard plains

• Developed because ground vegetation became scarce

Answer 1

Webbed feet in swimming birds were explained as developing by stretching skin between the toes. This acquired modification was considered by Lamarck to be passed on to subsequent generations.