| The whistle-blow is the loudest of the vocalizations, loud enough to make the iron bars in the zoo enclosure where the rhinos were studied vibrate. |
| The whistle-blow is named because it consists of a two-second-long whistling noise and a burst of air in immediate succession. |
| Students who had whistle-blown in the past provided fewer reasons not to whistle-blow than other students. |
| Many nurses face bullying and being belittled when they try to whistle-blow, a survey suggests. |
| Jeremy Hunt told the Daily Mail said he wanted to see a clampdown on such practices and would seek to introduce wording into agreements making it clear people could still whistle-blow. |
| A vocalization of similar volume from elephants has been shown to carry 9.8 km and the whistle-blow may carry as far. |
