habituate

In other words, the immune cells responsible for recognizing cancer may get somehow habituated to the presence of a cancer cell -- the immune cell gets used to the stimulus and no longer responds to it.

The authors said the urban experiences of P41, P22 and others in the study illustrate how, when faced with increased human activity, mountain lions actively seek to avoid people rather than becoming habituated to them.

Sierra Madre has a mix of no harm, no foul bears and habituated bears, Wilson said.

The ice-free season is now about a month longer than what polar bears are habituated to.

“In some cases, a food conditioned, or habituated bear may become too bold and act aggressively towards people.”