Your pet's fur could be clogging your dryer exhaust duct.
We love our furry friends and have come to accept the multicolored strands of fur that attach to our clothing and accompany us to business meetings. This constant reminder each time we look down, as cute as you might think it is, is a fire hazard. All this means is you should perform dryer duct maintenance twice per year instead of the recommended once per year.

If you see an excessive amount of pet fur on the dryer’s lint screen, or the fur remains on the clothing after the drying cycle is complete, this may be an indication of a clogged dryer exhaust duct.  Fur accumulates and builds up over time, creating obstructions in the dryer exhaust duct. This restricts the airflow from the dryer to the exterior vent and makes the dryer work harder. An inefficient dryer coupled with a clogged duct are grounds for a dryer fire.

You can either call a service company to inspect and clean the exhaust duct for you, or do it yourself, following some simple steps in this article, Clogged Dryer Vents and Duct Cleaning.
Clogged ventDryer fire preventionDuct cleaning