Which Animal Does Not Fart?

Share All sharing options for: Farts: which animals do, which don't, and why. Here's a mind-boggling fact: Almost all mammals fart, yet the sloth does not.

Do Kangaroos fart?

Kangaroos don't fart. These beasts were once the mystery of the animal kingdom -- thought to produce low-methane, environmentally friendly toots. However, new research on kangaroo crop dusting suggests this isn't true.

Can snakes fart?

They don't pass gas, but they often will defecate and urinate in an attempt to scare predators off. Some snakes also have well-developed musk or scent glands that open into the vent, and those species will often release this odiferous, noxious liquid when alarmed or threatened.