On the BBC Learning English YouTube community page, we asked you what your favorite animal was.

In which film did Jon's character's nephew deliver the line, "Ligers are pretty much my favorite animal"?

- (high voice) Blue. - (high voice) What's your favorite animal?

What's your favorite animal?

I love sloths because it's been my favorite animal for about 10 years,

Back to teeth. Let's talk about the most unique tooth in the ocean, narwhals. Also known as the unicorns of the sea because of their most impressive asset, their tusk. These tusks are actually a canine tooth that projects from the left side of the upper jaw through the lip and forms a left-handed helix spiral. Some males, about 1 in 500, actually have two tusks. Scientists are still debating and searching for the biological function of the tusk. And while the answer is still unknown, the leading theory is that it's somehow involved in a mating or breeding display because of the fact that males tend to have them more often than females. However, recent analysis has shown that the tusk is a highly innervated sensory organ with millions of nerve endings. So, it appears that this tusk is some sort of sixth sense that helps the animals feel around their dark, wintery, cold world. There are very few tusked animals in the world and only one other tusked marine mammal. It just so happens to be my favorite animal of all time, the walrus. Just like narwhals, the tusks of the walrus grow throughout their lives. They're basically modified canine teeth. They can reach about a meter in length and the root of that tusk grows very close to the sinuses in the walrus. The depth of these canine roots makes dental health for walruses extremely important because they can easily break or chip tusks. And if those tusks get a break or a chip, an infection, an abscess, that infection can very easily make its way up to the sinus and even into the brain. In the beginning of the video,

What is my favorite animal?

I know capybara isn't like the most well-known animals on Earth, and I started to talk about them a lot because I get questions about what is my favorite animal, and I've always been attached to capybara.

Okay, I don't want to eat my favorite animal.

Lots of animals make noises, and in the summer, I like to listen for one of my favorite animal sounds.