| The researchers conclude that disruption of bone mineral composition correlates with the presence of PCBs, DDT residues, and other POPs among polar bears from East Greenland. |
| If she hesitates, the male again pops in and out of his lair until she is finally tempted inside. |
| Sue asks her colleague to hold the fort while she pops outside for a moment. |
| We used to listen to Christmas records on the gramophone every Christmas, pops, clicks, fuzz and all. |
| If a bird keeps leaving her eggs and only pops in for a quick visit from time to time, the eggs will addle and come to nothing. |
| A quick blip of the keyfob, touch the button under the wing mirror, the glass lowers and the door pops open. |
