Read the following passage.
A. Satellite tracking tags attached to birds, whales, and large land mammals send location signals that researchers download as maps of movement. Early tags were heavy and suited only to large animals; newer devices are lighter and last longer on smaller species. Batteries, antennas, and waterproof housings must survive salt, cold, and crashes into trees. When a tag fails, a migration line on the map simply stops, which can look like death even when the animal is fine.
B. Tracking data help scientists estimate how far animals travel between breeding and wintering areas. Those distances matter for international conservation because a species may nest in one country and feed in another. Managers use corridors identified from tracks to argue for protected stopover wetlands. Still, a track shows where an animal went, not always why it turned aside - storms, predators, or human noise can all cause detours that need separate field study.
C. Ethics rules limit how tags are attached. Researchers must show that the device’s weight is a small fraction of body mass and that capture stress is minimised. Some studies compare tagged and untagged groups to check whether behaviour changes. Public reports increasingly include those methods so readers can judge whether movement maps are trustworthy. Funding agencies may refuse projects that skip welfare review.
D. Citizen science platforms sometimes display simplified tracks for education, with private nesting sites hidden. Teachers use the maps to show seasonal change without revealing exact dens. Critics warn that open data could help poachers if filters fail. As a result, many projects delay release of precise coordinates until breeding seasons end. The scientific papers keep full detail under controlled access.
E. Not given in any of the above paragraphs.
Decide which paragraph, A to D, has the information given in each statement below. Select E if the information is not given in any of the paragraphs.