Seen here is the rare and elusive tufted ground squirrel (Rheithrosciurus macrotis). Scientist Erik Meijaard along with his wife Rona Dennis and daughter Emily Mae Meijaard, analyzed a series photos taken with motion-controlled cameras to deduce that the 35-centimeter-long rodent has the bushiest/fluffiest tail of any mammal compared to its body size.

According to their measurements, the tufted ground squirrel’s tail is 30% larger than the volume of its body. You can find the complete paper published in TAPROBANICA: The Journal of Asian Biodiversity.