Why Do Capybaras Flap Their Ears?

Table of Contents

If you’ve ever been to the rainforest, you might have noticed that some animals fling their ears in order to hear better. This common trait of capybaras is called eardrop rolling. Why do capybaras flap their ears? Scientists aren’t sure, but they think it has something to do with hearing in the rainforest’s humid conditions. Most people can’t hear lower frequencies because our outer ear is designed for higher frequencies. As such, capybaras may be able to roll their ears because of their lower frequency hearing capabilities. You can see this behavior in videos on YouTube like this one:
To understand why capybaras flap their ears, let’s go over what happens inside an ear when it hears sound. There are two parts of an ear that react to sound: the ear canal and the external auditory canal ( EAC). The eardrum is a membrane that vibrates at high speeds when exposed to sound waves, which creates pressure vibrations within the outer part of the ear canal and causes fluid within the EAC to oscillate. The movement of these fluids into and out of the EAC changes shape and amplifies vibration as it travels along its length.

Why do capybaras only poop in water?

Capybaras have an unusual diet. They forage for food in water, so they only poop when they are submerged below the surface of the water. This is because their rectum is located just above the anus and when they poop, the feces travel through it and out of their body. When capybara poops, about 8-10% of it is solid matter; the rest is liquid waste.

Do capybaras get rabies?

No. Capybaras do not get rabies, so there is no need to worry that you might come into contact with it from a capybara’s bite.

What does a capybara fur feel like?

Capybaras have soft, dense, and long fur that protects them from predators and the elements. Their fur is mostly white, with a few brown spots. They are similar in shape to a large guinea pig. Capybaras are found in Central America, Mexico, and South America.

Why do capybaras flap their ears? Researchers aren’t sure but they think it has something to do with hearing in the rainforest’s humid conditions.

Do capybaras whine?

Capybaras do not whine, but they do moan. This means that they produce a low-pitched sound in response to an animal or object touching or poking their skin. They also make these noises when they are frightened.
So, why do capybaras flap their ears? Science isn’t sure yet, but we do know that the trees of the rainforest might be playing a role in how capybaras use their ears.

More Of The Same Category​

Paul Lirr

Paul Lirr

Hi, my name is Paul Lirr. I'm a 35-year-old and lives with my girlfriend for 5 years.
I'm originally from Manchester, England, but I've been living in Sydney, Australia, for the last few years. Which led me straight to the sweetest hand I have ever met.
The hands of the Capybara. Yes, I'm a proud Capybara lover.

About Me

Recent Posts

Capybaras are the Friendliest Animal