In 2012 Apple decided to drop YouTube from the set of native apps with introduction of iOS 6 and soon after Google released its own app, which since has gone through 11 major iterations and today proudly sits on the third place of the Top 10 Most Popular iOS apps.
Some species of squirrels may claim as much as 10 hectares of territory. Because of the high density of squirrels in most habitats, there is sometimes significant territory overlap. Squirrels mark their territory with urine and tail-waving displays, and they may bark warning calls at passing intruders, including humans.
A favoured site for a drey is a tree crotch about 30 to 45 feet (9.1 to 13.7 m) above ground level. Squirrels may also nest in attics or exterior walls of buildings, where a drey may be regarded as a fire hazard, as some squirrels have a habit of gnawing on electrical cables.At other times, squirrels may inhabit a permanent tree den in the hollow of a trunk or large branch.quirrels may also nest in attics or exterior walls of buildings, where a drey may be regarded as a fire hazard, as some squirrels have a habit of gnawing on electrical cables. At other times, squirrels may inhabit a permanent tree den in the hollow of a trunk or large branch.