How do rats determine suitable locations for constructing burrows?

Rats primarily use their facial whiskers, known as vibrissae, to help navigate their environment and locate suitable sites for burrowing. The whiskers are highly sensitive and can detect changes in their surroundings, such as the texture of surfaces and the presence of nearby objects. This sensory input is essential in finding safe and appropriate locations for burrows, which provide protection and stability.

In addition, while temperature variations, auditory cues, and social behaviors may play some role in their overall habitat choices, the tactile feedback provided by whiskers is crucial for a rat's spatial awareness and ability to assess an area for burrowing. The whiskers help them maneuver in tight spaces and ensure that the burrow is constructed in a location that minimizes danger from predators while maximizing safety and comfort.