On second thought …

… Lamarck and the Missing Lnc | The Scientist.

Although biologists have generally considered Lamarck’s ideas to contain as much truth as Kipling’s fables, the burgeoning field of epigenetics has made some of us reconsider our ridicule. While no biologist believes that organisms can willfully change their physiology in response to their environment and pass those changes on to their offspring, some evidence suggests that the environment can make lasting changes to the genome via epigenetic mechanisms—changes that may be passed on to future generations.

But as more such evidence accumulates and its implications are explored, it may pose something of a challenge to the Darwinian model, since it is a simpler explanation than mere randomness.