Greater mouse-tailed bats use their tail as a tactile sensor when navigating backwards

Area of Science:

• Zoology
• Animal Behavior
• Sensory Ecology

Background:

• Animals integrate multiple sensory inputs for orientation, with most sensory organs located frontally.
• Backward locomotion requires specialized sensory strategies, which are less common than forward-facing senses.

Purpose of the Study:

• To investigate the role of the tail in the backward navigation and sensory perception of greater mouse-tailed bats (Rhinopoma microphyllum).
• To determine if the tail functions as a tactile sensor for texture discrimination and obstacle avoidance.

Main Methods:

• Observing bat behavior during backward movement in controlled environments.
• Assessing navigation and obstacle avoidance with and without tail anesthesia.
• Testing the bats' ability to discriminate between different textures using their tails.

Main Results:

• Greater mouse-tailed bats utilize their long, free tails for navigating backward, particularly up walls and around obstacles.
• Anesthesia of the tail significantly hindered the bats' ability to navigate and avoid obstacles.
• The bats demonstrated a capacity to discriminate between various textures using their tails, sensing subtle changes.

Conclusions:

• The tail of the greater mouse-tailed bat serves as a vital tactile sensory organ.
• This tail-based tactile sensing allows for efficient backward locomotion and environmental exploration, especially when other senses are limited.