41.   Now, at many locations, sophisticated packages of instruments are used to continuously detect almost everything that humans once did.

42.   Remember, if you remove the fledgling, the parents will have a hard time finding it and they do much better than humans do feeding their little ones.

43.   So instead of voting machines transmitting the results over phone lines to a central computer, humans must do the work.

44.   Technology has vastly expanded what humans can do.

45.   The foam, which comes from mixing in air, much as an immature human does with a glass of milk and a straw, serves two purposes.

46.   The fact is that dogs cannot conceive of the future as humans do.

47.   The pooches were able to go almost everywhere the humans did, including restaurants, the bustling market at Sarlat and the Romanesque abbey church of St. Cyprien.

48.   The sheer variety of what humans do to their corpses appears to be restricted only by the imagination.

49.   The signals tell her how the creatures survive the winter, and what humans can do to help them.

50.   The variety of what humans do to their corpses appears to be restricted only by the imagination.